Search: “data-leakage”

Top 10 Best Mobile Threat Defense (MTD) Solutions in 2026

Roundup of 2026 mobile threat defense tools recommends Zimperium and Lookout for targeted-attack detection and Defender for Endpoint for Microsoft shops.

This guide ranks ten mobile threat defense solutions, recommending Zimperium and Lookout for on-device detection against targeted users such as executives and journalists, and Microsoft Defender for Endpoint mobile for organizations already licensing Microsoft 365 E5. It explains that MDM enforces configuration while MTD detects attacks, and that mobile phishing now arrives via SMS, messaging apps and QR codes rather than email. It also highlights mercenary spyware and zero-click exploits as shifting requirements for high-risk users, referencing Apple's threat-notification program and Lockdown Mode.

Cyber Security News·Sep 9, 07:50 UTC · 7d agoIndustry

Nearly 750k had financial info, SSNs leaked in South Carolina loan company breach

Heights Finance breach of a third-party cloud platform exposed SSNs and banking data of 734,828 loan customers across 11 states.

Attackers breached a third-party cloud platform used by Heights Finance in May, exposing data on 734,828 customers, according to the company's filing with Texas regulators. Stolen data includes contact details, bank account and routing numbers, Social Security numbers, tax IDs and driver's license numbers. The breach, discovered on May 7, was limited to the cloud platform and did not affect loan management systems. No group has claimed the attack and dark web monitoring has found no evidence of the data being leaked.

The Record·Aug 17, 20:14 UTC · 29d agoData breach

The 12 Best Mobile Threat Defense (MTD) Solutions, Compared and Priced

A comparison of 12 mobile threat defense vendors highlights Zimperium's on-device detection and notes Kaspersky's US exit and Wandera's Jamf absorption.

The buyer's guide compares 12 mobile threat defense (MTD) products, naming Zimperium best for fully on-device detection and Microsoft Defender for Endpoint as the best-value bundled option. It reminds readers that Kaspersky cannot legally be sold or updated in the US following a Commerce Department determination, and that Wandera was acquired by Jamf. Most MTD pricing is quote-based per device or per user.

GBHackers·Sep 10, 08:15 UTC · 6d agoIndustry 4 sources

Health data of more than 9.5 million people leaked from Aesto record system

Health data firm Aesto reported a breach affecting over 9.5 million people after hackers accessed its AWS infrastructure between December 2 and 18.

Alabama-based healthcare data company Aesto notified the Department of Health and Human Services that more than 9.5 million people had sensitive information leaked in a December cyberattack, after previously warning customers in June without disclosing scope. Attackers broke into the company's Amazon Web Services infrastructure between December 2 and December 18, stealing names, Social Security numbers, medical information, driver's license numbers, financial account numbers, and health insurance data. Aesto provides data migration and archiving services for medical facilities, and at least 30 healthcare organizations were affected, with breach notices filed for customers including Together Women's Health. Related healthcare incidents disclosed this year include Baylor Genetics (2.8 million people), CareCloud (3.7 million), and recent attacks at McKesson, Nutex, Paylogix, and Park Dental Partners.

The Record·Sep 2, 17:22 UTC · 13d agoData breach

Privacy Failure in Split-LLM Training, The Returned Gradient Nullifies the Decoys

Researchers show split-LLM training leaks privacy via zero-valued gradients on decoy rows, exposing which activations are real despite passing forward-channel checks.

A systems-security case study of a two-node split-LLM training setup found that the returned output gradient from an Untrusted Cloud Node is exactly zero for decoy rows, revealing which rows are real. Across nine seeds, zero patterns identified real rows in 4,096 of 4,096 frames per run, and an attack on frame contents recovered 0.65 to 1.50 percentage points of extra tokens over a baseline. Both datasets passed forward-channel privacy and quality checks but failed once the returned gradient was included. Row-wise gradient clipping and noise closed the leak for roughly 0.01 nats of held-out cross-entropy, though five unmeasured attack classes remain.

Hugging Face daily papers·Sep 2, 20:00 UTC · 13d agoAI safety & security

Subgroup Membership Inference Audits of Differentially Private Synthetic Text

Audits of 32 differentially private synthetic-text releases show subgroup membership leakage is concentrated in few records and systematically underestimated by average-case attacks.

The paper defines a subgroup-targeted membership inference game in which the target pool is an explicit parameter, to audit residual leakage in differentially private synthetic text releases. The audit instantiates 32 proxies across four datasets, three generators (DP-SGD fine-tuning, API-based prompting, and activation steering), and five privacy budgets. DP substantially reduces average leakage at every budget, but remaining leakage is concentrated: roughly a tenth of records carries about 40% of it, and the noise removes more measured leakage from random records than from high-risk ones. Which records leak depends on the release mechanism, so record-level risk cannot be assessed independently of the release.

arXiv cs.CR·Sep 9, 07:56 UTC · 7d agoResearch

Predicting Privacy Leakage from Weight Spectral Density

Study shows WeightWatcher spectral metrics like stable rank correlate with membership inference vulnerability, enabling cheaper ML privacy auditing.

The paper tests whether spectral metrics from the heavy-tailed self-regularisation framework can proxy membership inference attack (MIA) vulnerability without training expensive shadow models. On image and tabular classification tasks, stable rank correlates positively with overall MIA success, while Log alpha-Norm correlates negatively at the low false-positive regime. These correlations are stronger than those obtained from the generalisation gap, suggesting weight spectra capture leakage information overfitting measures miss. The authors propose spectral analysis as a scalable direction for privacy auditing.

arXiv cs.CR·Sep 10, 16:34 UTC · 5d agoResearch

Revolut confirms customer data breach, falling for fake government requests

Revolut confirmed a breach of sensitive customer data after complying with forged government information requests.

Revolut confirmed that sensitive customer data was exposed after the fintech fell for fake government data requests, Reuters reported. The incident is a form of legal-process fraud in which attackers impersonate law-enforcement or government agencies to trick compliance teams into disclosing user data. The number of affected customers and specific data types were not detailed in the available text.

Hacker News · security·updated Sep 14, 11:20 UTC · 2d ago·first Sep 12, 17:19 UTC · 3d agoData breach 3 sourcesHN 20↑ · 2 comments

ZDI-26-613: (0Day) pdfforge PDF Architect PDF File Parsing Memory Corruption Remote Code Execution Vulnerability

ZDI published ZDI-26-613, an unpatched memory corruption flaw in pdfforge PDF Architect PDF parsing enabling remote code execution (CVSS 7.8).

The Zero Day Initiative disclosed ZDI-26-613, a memory corruption vulnerability in pdfforge PDF Architect's PDF file parsing that allows remote code execution on affected installations. User interaction is required, meaning the target must visit a malicious page or open a malicious file. ZDI assigned a CVSS score of 7.8 and classifies the issue as a 0day.

ZDI Published Advisories·Aug 31, 05:00 UTC · 16d agoAdvisory

Berlin Ransomware Leak Exposes State Secrets

Rhysida ransomware leaked 5.79 TB of Berlin state government data on the dark web after the city refused a 30 Bitcoin ransom.

The Rhysida ransomware group published 5.79 TB (about 1.44 million files) of Berlin state administration data on its leak site on August 28, 2026, after the city-state refused a 30 Bitcoin ransom. The claimed dataset includes personal data on 12,076 individuals, over 5,000 personnel files, payroll records, plaintext credentials for systems like PAYONE and Z_ADMIN, Bundesrat committee protocols, and documents allegedly containing state secrets. Leaked material reportedly covers national defense emergency plans, federal secret communication channels, a CBRN threat planning folder, and vulnerability analyses of Berlin's water supply. Berlin's government has activated a central crisis unit to review the leaked data and notify affected citizens and businesses.

Security Affairs·Sep 7, 07:19 UTC · 9d agoRansomware

Malicious LiteLLM Releases Tied to Trivy Hack May Have Exposed 2,100+ Organizations

Malicious LiteLLM 1.82.7/1.82.8 PyPI releases tied to the Trivy TeamPCP campaign harvested cloud, SSH, and database credentials, potentially exposing 2,500+ organizations.

CloudSEK reported that two malicious LiteLLM releases on PyPI (versions 1.82.7 and 1.82.8, live about 40 minutes on March 24) harvested cloud keys, SSH keys, Kubernetes tokens, and database passwords, with captured loot files mapping potential exposure to more than 2,500 organizations including NVIDIA, Cisco, Deloitte, Volkswagen, FedEx, Siemens, and X Corp. The campaign is part of TeamPCP (tracked by Google as UNC6780), linked to the Aqua Security Trivy scanner compromise tracked as CVE-2026-33634 and added to CISA's Known Exploited Vulnerabilities catalog on March 26. The payload used a litellm_init.pth file executed at Python interpreter startup and exfiltrated secrets to models.litellm[.]cloud; the FBI's FLASH-20260702-01 advisory urged rotation of CI/CD, publishing, and cloud credentials.

The Hacker News·Aug 12, 08:05 UTC · Aug 12, 2026Data breach in the wildCVE-2026-33634

The GTA VI leaks are breaking the internet. Security researchers have seen this before.

A hacker or insider leaked GTA VI gameplay footage before launch, triggering Take-Two DMCA subpoenas against Discord, Google, Microsoft and X.

The persona "CyberLeek" published stolen Grand Theft Auto VI gameplay footage and a manifesto, in what experts call a familiar data extortion playbook with monetization via watermarks, crypto wallets and a memecoin. Take-Two Interactive obtained DMCA subpoenas against Discord, Microsoft and X, and sent copyright notices to Google, treating the case like an insider threat investigation. GTA VI is projected to earn $3.3–5.2 billion in launch-week sales, raising financial and reputational stakes. Related leak websites went offline after the subpoenas.

CyberScoop·Aug 26, 01:54 UTC · 21d agoData breach

74,000 Fortinet firewall credentials exposed in FortiBleed data leak

Help Net Security·Aug 3, 13:19 UTC · Aug 3, 2026Data breach

Target leakage, not model class, explains reported accuracy in survey-based cardiovascular screening: a leakage-tiered audit of glass-box and tabular foundation models

Audits of 10 classifiers on BRFSS show target leakage, not model class, drives the reported 0.89 AUROC in survey-based cardiovascular screening.

The study benchmarks ten model classes, including glass-box and tabular foundation models, for prevalent myocardial infarction on 442,067 respondents of the 2022 BRFSS across five feature tiers of decreasing leakage risk. Removing two post-diagnostic features costs every model 0.049-0.051 AUROC and collapses performance into a 0.0045-wide band, and the explainable boosting machine matches all alternatives within 0.005 while scoring roughly 104x faster than the strongest foundation model. Frozen models transport within 0.002 AUROC to 2023 data; the authors conclude evaluation practice and feature sets, not model capacity, are the binding constraint.

arXiv cs.AI / cs.LG / cs.CL·Sep 10, 17:29 UTC · 5d agoAI research1

Attackers Exploit MLflow SSRF Flaw to Steal Cloud Credentials and Secrets

Attackers exploit MLflow SSRF CVE-2026-64849 (CVSS 9.3) to steal cloud credentials; CISA added it to KEV; FUXA flaw CVE-2026-25895 is being scanned.

watchTowr observed exploitation of MLflow CVE-2026-64849, an unauthenticated SSRF (CVSS 9.3) affecting versions below 3.15.0, within hours of CVE assignment on August 17, 2026, with attackers abusing model-registry webhooks to reach cloud metadata endpoints and exfiltrate credentials and secrets. CISA added the flaw to its Known Exploited Vulnerabilities catalog on August 19, 2026, with a September 2 patch deadline for federal civilian agencies. VulnCheck reported scanning of FUXA CVE-2026-25895 (missing authentication plus path traversal, CVSS 9.5, versions through 1.2.9) beginning August 18; about 60 FUXA instances are exposed and no RCE payloads have been dropped yet.

The Hacker News·Aug 20, 05:48 UTC · 27d agoExploit / PoC in the wildCVE-2026-64849CVE-2026-25895CVE-2026-25939+1 CVEs

Mathspace discloses data breach affecting over 1 million people

Mathspace disclosed a Metabase breach exposing data of 1,079,819 students, parents, and staff in Australia and New Zealand.

Mathspace confirmed attackers exploited a vulnerability in its self-hosted Metabase reporting system, gaining administrator access without legitimate login and downloading data on over 1 million people (1,079,819 total) in Australia and New Zealand. Access began August 10, data was downloaded August 27, and the theft was confirmed September 3, 2026. No credentials, academic records, or school-account links were exposed, but affected individuals are warned of targeted phishing. The incident joins a broader campaign against Metabase instances, including Trezor's provider ShipMonk, Framework, and Tally, linked to ShinyHunters via extortion emails and leak-site listings.

BleepingComputer·Sep 7, 13:05 UTC · 9d agoData breach in the wild

Researchers Confirm ExfilSquad’s Access to Sensitive Data Across 13 Organizations

Researchers confirmed extortion group ExfilSquad holds stolen sensitive data from at least 13 organizations, publishing leaked datasets via torrents.

Security researchers verified that the extortion group ExfilSquad possesses sensitive data stolen from at least 13 victim organizations. The group distributed the leaked datasets publicly through torrents rather than a traditional leak site. Independent verification of the stolen data lends credibility to the group's extortion claims against its victims.

Infosecurity Magazine·Aug 14, 14:49 UTC · Aug 14, 2026Ransomware

GDCM <= 3.2.7: six memory-safety and denial-of-service vulnerabilities, no CVE

Six memory-safety and denial-of-service flaws disclosed in the GDCM DICOM parsing library, affecting versions through 3.2.7.

Researcher Abhinav Agarwal disclosed six vulnerabilities in GDCM (Grassroots DICOM), an open-source C++ library for parsing and processing DICOM files. All six were confirmed against GDCM 3.2.6 using AddressSanitizer and UndefinedBehaviorSanitizer, and source review found the vulnerable patterns through version 3.2.7 and the upstream master snapshot. Potential impacts include heap corruption, process-memory disclosure, stack exhaustion, and process termination in applications parsing untrusted DICOM files. No CVE identifiers have been assigned at the time of disclosure.

oss-security·Sep 10, 03:35 UTC · 6d agoVulnerability

Mythos Vulnerability Firehose Hits a Human Bottleneck

Analysis of Project Glasswing findings shows only a fraction of discovered vulnerabilities have reached disclosure and even fewer are fixed.

Dark Reading reports that an analysis of Project Glasswing findings shows only a fraction of the vulnerabilities discovered by the program have reached disclosure, and an even smaller number have been fixed. The article examines how the volume of findings from the discovery program is bottlenecked by limited human triage and remediation capacity. The piece highlights growing tension between high-volume vulnerability discovery and the industry's ability to process, disclose and patch reports.

Dark Reading·Sep 9, 21:19 UTC · 6d agoResearch

Three intrusions at UK criminal records office went undetected for two years

UK ICO reprimands ACRO criminal records office after three undetected intrusions over two years exposed thousands of records, including domestic violence victims.

The UK Information Commissioner's Office reprimanded ACRO Criminal Records Office after three intrusions between July 2021 and June 2023 exploited a Kentico customer portal unpatched since September 2019 and ignored Trend Micro antivirus alerts, including four quarantined Mimikatz detections. An attacker maintained persistent access for roughly seven months and staged data of nearly 11,000 people for exfiltration, though ACRO could not confirm exfiltration due to insufficient logging. ACRO notified more than 84,000 people on a precautionary basis; the Medusa ransomware group claimed the incident, and network segmentation kept attackers out of the Police National Computer.

The Record·Aug 12, 13:08 UTC · Aug 12, 2026Data breach in the wild

Mathspace breach exposes data on over a million students and parents

Mathspace confirmed attackers exploited an unpatched Metabase SQL injection flaw to steal personal data of 1,079,819 students, parents, and staff in Australia and New Zealand.

Attackers accessed Mathspace's self-hosted Metabase reporting system without legitimate login, with unauthorized access dating back to 10 August 2026 and data downloaded on 27 August. Exposed data includes names, usernames, email addresses, country, and account metadata; no passwords, academic records, SSO tokens, or API credentials were taken. Framework, Tally, and Kilo Code disclosed similar breaches via the same Metabase SQL injection flaw in August 2026.

Help Net Security·Sep 8, 08:45 UTC · 8d agoData breach in the wild

153GB of stolen credentials surface after LiteLLM supply chain attack

153GB archive from the LiteLLM supply chain attack exposes secrets from about 2,500 companies, including AWS, Samsung, Cisco and Salesforce.

Hudson Rock obtained and analyzed a 153GB archive stolen in the LiteLLM supply chain attack, containing 433,909 files with secrets attributed to 2,488 corporate domains, including AWS, Samsung, Cisco, Salesforce, NVIDIA, Microsoft and Siemens. TeamPCP compromised Trivy on March 19, 2026, stole LiteLLM's PyPI publishing tokens through the build pipeline, and published malicious LiteLLM versions 1.82.7 and 1.82.8 on March 24. CloudSEK separately estimated close to 2,500 exposed organizations, and Kevin Beaumont confirmed the data is legitimate. Hudson Rock is running a global ethical disclosure effort and urges organizations to rotate secrets before the trove leaks publicly.

Help Net Security·Aug 13, 00:00 UTC · Aug 13, 2026Data breach in the wild

Grok exfiltrates user data when malicious instructions are encrypted

Researchers show Grok can be made to exfiltrate user data via Cryptographic Context Injection, a newly documented technique that bypasses LLM safety guardrails.

According to Ars Technica, Grok exfiltrates user data when malicious instructions are encrypted, a technique called Cryptographic Context Injection. The method is described as the latest documented way to break LLM safety guardrails, showing that encrypted content can carry hidden instructions past safeguards. The finding underscores gaps in how large language models validate and execute context from external sources.

Ars Technica · Security·Aug 20, 13:00 UTC · 27d agoAI safety & security1

Cloudflare Workers Spectre Attack Leaks JWT From Co

Researchers demonstrated a remote Spectre attack leaking a JWT between co-located Cloudflare Workers at 12 bits per second, 360x the 2021 rate.

Security researchers showed a remote Spectre attack against Cloudflare Workers that leaked a JWT from a co-located Worker at up to 12 bits per second with 99.16% accuracy, 360 times the 2021 demonstration rate. The attack exploited weaknesses in DyPrIs dynamic process isolation, where long-lived Durable Object invocations could run before isolation and WebSocket-heavy I/O suppressed the branch-misprediction signal. Cloudflare deployed improved DyPrIs, the V8 Sandbox, and MPK-based in-process isolation, and found no indicators of active exploitation over three years.

The Hacker News·Aug 19, 19:02 UTC · 27d agoVulnerability

Rare Not Random Using Token Efficiency for Secrets Scanning

Researcher proposes token efficiency (string length divided by BPE token count) as a better post-regex filter than entropy for secrets scanning, validated on CredData.

The post explores whether Byte-Pair Encoding tokenization can replace Shannon entropy as the primary filter for candidate secrets captured by regex in tools like Gitleaks. It defines 'token efficiency' as string length divided by token count under the cl100k_base tokenizer; secret-like strings such as GitHub tokens tokenize into many small tokens and score low, while natural text scores high. Evaluating labeled secrets from the CredData dataset shows a usable separation, with roughly 2.5 suggested as a minimum cutoff versus Gitleaks' 3.5 entropy threshold. The technique is positioned as a post-regex filtering step rather than a standalone detector.

Lobsters · security·Sep 12, 06:42 UTC · 4d agoResearch

E-Commerce Access, Vedicline Data, Langflow RCE, ASUS Claim, and Energy Shell Access

SOCRadar reports underground posts claiming a Bangladeshi e-commerce database, Vedicline data leak, Langflow RCE, ASUS breach, and energy-sector shell access.

SOCRadar's Dark Web Team identified several new underground posts, including an alleged Bangladeshi e-commerce customer database offered for sale. The roundup also covers a claimed Vedicline data leak, Langflow remote code execution, an ASUS breach claim, and energy-sector shell access sales. Details on record counts and victims were not provided in the excerpt.

SOCRadar·Sep 7, 09:20 UTC · 9d agoData breach

Revolut Data Breach Exposes Customers’ Passport Copies and Full Transaction Histories to Hackers

Revolut leaked KYC documents and full transaction histories after a fraudulent, domain-authenticated email request impersonating a government agency.

Revolut disclosed that an attacker using an unauthorized email account on a legitimate government domain, with valid domain-authentication credentials, tricked the fintech into releasing customer data. The exposed data includes passport and driver's license copies, identity-verification selfies, full names, dates of birth, addresses, IBANs, and complete transaction histories including Bitcoin activity. Revolut says core systems, accounts, and funds were not compromised, and it blocked the email source and notified authorities. On-chain investigator ZachXBT and others indicated the operation targeted high-net-worth users facing elevated phishing, SIM-swap, and extortion risk.

Cyber Security News·Sep 13, 05:09 UTC · 3d agoData breach3· 1 read

An Empirical Analysis of ReDoS Vulnerabilities and ReDoS Detection Tools

Study of NVD data finds ReDoS vulnerabilities growing more prevalent and more likely to be exploited, while five detection tools disagree substantially.

The study compares five publicly available ReDoS detection tools and one regex correction tool across three datasets. An empirical analysis of all ReDoS vulnerabilities reported to the NVD finds they are becoming more prevalent and are much more likely to be exploited than non-ReDoS weaknesses. The detection tools exhibited substantial disagreement on whether a given regex is vulnerable.

arXiv cs.CR·Sep 9, 15:09 UTC · 6d agoResearch

Terabytes of credentials leaked in massive supply-chain attack

Compromise of an AI software package led to scraping and exfiltration of terabytes of credentials from about 2,500 users.

A supply-chain attack involving a compromised AI software package resulted in data being scraped and exfiltrated. Roughly 2,500 users were affected, with terabytes of credentials leaked. The article provides limited technical detail on the package or attackers involved.

Ars Technica · Security·Aug 12, 21:43 UTC · Aug 12, 2026Data breach in the wild

Client-Side Probing of Deleted Ridge Statistics in Federated Unlearning

Researchers show malicious federated learning clients can probe broadcast classifiers to recover deleted samples, exposing exact label leakage on MNIST and CIFAR-10.

The paper shows that federated unlearning systems broadcasting updated linear classifiers leak compact additive training summaries to clients. A malicious client can submit known changes, identify server states from returned classifiers, and compare states around an isolated deletion to expose the deleted sample, class, or client summary, potentially enabling reinsertion. On MNIST and CIFAR-10, high-precision broadcasts allowed exact label recovery for every tested deletion, while lower precision sharply reduced fine-grained recovery.

arXiv cs.CR·Sep 3, 20:59 UTC · 12d agoResearch

CenterPoint Energy confirms customer data stolen in cyberattack

CenterPoint Energy confirms attackers stole customer personal data, with a threat actor leaking 7.49 million records scraped from an unprotected API.

CenterPoint Energy, a utility serving about 7 million metered customers across Indiana, Minnesota, Ohio, and Texas, confirmed in an SEC filing that an unauthorized third party obtained customer personal information via an external-facing system. A threat actor using the alias "4d722e4d656f77" leaked 7.49 million records containing names, phone numbers, service and billing addresses, account numbers, billing amounts, and partial Social Security numbers. The actor claims the data was exfiltrated by iterating through millions of IDs on CenterPoint's public API, which lacked rate limiting and WAF protections. Electric and gas services were not impacted, but multiple federal class-action lawsuits have already been filed.

BleepingComputer·updated 11:40 UTC · 2h ago·first Sep 15, 16:40 UTC · 21h agoData breach 4 sources

Berlin investigates new data leak after hackers publish stolen login credentials

Berlin investigates a fresh leak after Rhysida hackers published stolen login credentials; the city refuses to pay the ransom demand.

Berlin confirmed hackers published additional stolen data, including login credentials, from a mid-August cyberattack on two city ministries responsible for urban development/housing and transport/climate. The Rhysida ransomware group claimed the breach in late August, saying it stole 5.79 TB of data including contracts, emails, passwords and classified information; Berlin acknowledged an extortion demand but refused to pay. Berlin's data protection regulator said the leak includes personal data on public employees and possibly residents, such as names, addresses, dates of birth and bank information. Germany's BSI separately linked the campaign to the TerminalFix fake-CAPTCHA technique and the LoremIpsumLoader/AxolotLoader malware tied to financially motivated Rhysida-associated hackers, days before Berlin's Sept. 20 election.

The Record·Sep 7, 11:50 UTC · 9d agoRansomware in the wild1