Search: “nextchat”

Quoting Calif Research

Calif Research demos WeWorm, an AI-built zero-click worm that spreads via WeChat calls on iOS and Android without user interaction.

Calif Research released a demo of WeWorm, described as the first zero-click worm to spread through WeChat calls across iOS and Android; victims need not answer the call and hear nothing even if they do. The team used AI to find the underlying bug and write a remote code execution exploit in about two days, then spent one more week building the worm. The researchers argue AI can now do most of the exploit-development work, with humans supplying judgment on targeting and safe testing.

Simon Willison·Sep 10, 00:56 UTC · 6d agoAI safety & security 3 sources

Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America

Unit 42 documents two AI-assisted intrusion campaigns against Latin American government, utility, and financial organizations using LLM-orchestrated tooling.

Palo Alto Networks Unit 42 tracks two ongoing intrusion clusters, CL-CRI-1131 (Mexican transportation, federal ministries, municipal water utilities) and CL-CRI-1163 (Brazilian financial sector), both using living-off-the-land techniques, SOCKS5 relays, and custom RATs. The attackers appear to orchestrate operations via commercial LLMs like Claude and GPT-4.1, evidenced by iterative batch scripts and AI-generated tunneling tool naming. The Mexican campaign (also reported as Operation Escaneo by CloudSEK) exfiltrated sensitive data via dynamic-DNS infrastructure with rotated multi-SAN TLS certificates between February and June 2026. This signals broader adoption of AI-enhanced operations by diverse threat groups in the region.

Palo Alto Unit 42·Sep 3, 10:00 UTC · 12d agoThreat actor in the wild1

Your AI chats could be used in court

AI chatbot conversations from ChatGPT and Claude are increasingly obtained by prosecutors and litigants, with OpenAI disclosures quadrupling in 2025.

A Washington Post report found chatbot logs cited in 12 court cases over the past two years, and OpenAI disclosed the content of more than 80 user accounts in the second half of 2025, more than four times the figure for the second half of 2024. In The New York Times' copyright lawsuit against OpenAI, a judge ordered the company to preserve chat logs, including ones users had asked to delete, despite GDPR and California privacy commitments. Chatbot conversations lack attorney-client or medical privilege, and OpenAI's policy allows reviewers to refer conversations to law enforcement when there is an imminent, credible risk of harm.

Malwarebytes Labs·Sep 2, 09:22 UTC · 13d agoAI policy

Hackers Use Claude and GPT-Powered Tools to Help Breach Government and Financial Networks

Unit 42 links two Latin America campaigns where operators used Claude and GPT-4.1 during intrusions against government and financial targets.

Palo Alto Networks Unit 42 identified two activity clusters, CL-CRI-1131 and CL-CRI-1163, tied by shared SOCKS5 relay infrastructure and use of large language models during operations. The Mexican cluster targeted a transportation organization, federal ministries and water utilities in Mexico and Ecuador, while the Brazilian cluster used resume-themed phishing, custom remote-access Trojans and SockTz SOCKS5 tunneling against financial organizations. An exposed self-hosted NextChat interface on attacker infrastructure led researchers to assess operators used Claude and GPT-4.1 to generate workaround scripts and troubleshoot execution failures. Unit 42 noted AI reduced time needed to troubleshoot intrusions after initial access, rather than replacing the attacker.

Cyber Security News·updated Sep 11, 07:24 UTC · 5d ago·first Sep 10, 08:06 UTC · 5d agoThreat actor in the wild 10 sources1

ChatGPT can now connect to your personal apps to mimic writing style

OpenAI is testing ChatGPT Writing Style, which mimics a user's voice using writing samples from connected Gmail, Slack, and Drive accounts.

OpenAI confirmed it is testing a Writing Style feature for ChatGPT that learns a user's voice from writing samples in connected apps. The onboarding flow references Messaging (Slack), Documents (Google Drive and Notion), and Email (Gmail) as example sources. It resembles Anthropic's Styles personalization feature but draws on existing writing inside connected services rather than uploaded samples. The feature is available to a small group of users with no announced general rollout date.

BleepingComputer·Sep 7, 10:36 UTC · 8d agoAI industry

Risky Bulletin: Russia tells data centers to deploy drone defenses

Russia ordered data center operators to deploy drone strike defenses under a Putin decree allowing temporary state takeover of unprotected critical infrastructure.

The Russian government instructed data center operators to deploy protections against drone strikes under a presidential decree signed by Putin that allows temporary state administration of critical infrastructure operators failing to defend against Ukrainian hacks and drone strikes. Although data centers are not formally critical infrastructure in Russia, the decree applies to them because other sectors depend heavily on cloud services; Russia has more than 180 data centers, over 80% in the European region within range of Ukrainian strikes. The digest also reports a Dropbox breach affecting nearly 5,000 accounts via the Lenovo ID integration, spyware attacks on at least 14 Serbians using NoviSpy or Pegasus, and a password recovery attack targeting hundreds of thousands of X accounts tied to the new X Money service. Other items include a 14-hour compromise of Coder's Cloudflare infrastructure delivering malicious Terraform modules, donor data breaches at Davayte and You Are Not Alone via the Stripe/WooCommerce integration, a $2.5M Aquifer crypto heist, and a TVING breach exposing data of almost 40 million accounts.

Risky Business News·Sep 4, 03:02 UTC · 12d agoPolicy & legal

Telegram Desktop Flaw Could Turn Old Chat Exports Into Data Theft Traps

ExPatch disclosed stored XSS in Telegram Desktop HTML export letting bot messages steal chat data when exports open in browsers.

ExPatch researchers Denis and Aleksander Rostilov found a stored XSS flaw (CVSS 8.2) where bot inline keyboard button text was written unescaped into HTML chat exports, executing attacker JavaScript in browsers. The payload can persist in chat history for months, exfiltrate messages, metadata, and local file paths, and rewrite the page, spreading via forwarded messages without bot membership. Telegram fixed it by applying SerializeString(), first stable fixed release 7.0.1 shipped July 14, 2026, but HTML exports created with vulnerable versions remain dangerous.

Security Affairs·Sep 15, 07:48 UTC · 23h agoVulnerability1· 1 read

Introducing ChatGPT Images 2.5

OpenAI released ChatGPT Images 2.5, improving generation of personalized, polished images from ideas, sketches, and reference photos.

OpenAI announced ChatGPT Images 2.5, a new version of its image generation capability in ChatGPT. The update is designed to turn ideas, sketches, and reference photos into more personalized and polished images that better reflect user intent. No benchmark numbers, model sizes, or technical architecture details were disclosed in the announcement.

OpenAI News·Sep 8, 11:30 UTC · 7d agoModel release

AI is getting better at election facts, but voters shouldn’t rely on it

CyberScoop·Aug 5, 09:00 UTC · Aug 5, 2026Exploit / PoC in the wild

OpenAI drops ChatGPT text chat limits for free users, adds new safeguards for teens

Help Net Security·Aug 7, 00:00 UTC · Aug 7, 2026Model release

The Shared Clipboard Inside the Sandbox: Cross-Account Data Leakage in ChatGPT

Check Point discovers cross-account data leakage in ChatGPT: isolated code-execution containers communicate via shared JFrog Artifactory, enabling covert Gmail exfiltration.

Check Point Research found a covert bidirectional channel between ChatGPT code-execution containers belonging to different accounts, which were supposed to be isolated from each other and the public internet. Both could reach the same internal JFrog Artifactory instance used for package delivery, whose exposed Item Management API allowed a 'shared clipboard' between containers. In a proof of concept, a hidden instruction in a shared conversation made ChatGPT retrieve email data from the victim's connected Gmail account and send it to the attacker's account while the victim received a normal answer. The same channel could exfiltrate conversation history and session files; OpenAI recently described a similar isolation weakness in its postmortem of the Hugging Face incident.

Check Point Research·Sep 8, 13:00 UTC · 7d agoAI safety & security1

ChatGPT Astra is now rolling out to $20 Plus subscription

OpenAI has begun rolling out ChatGPT Astra, its most powerful model to date, to $20 Plus subscribers; free-tier timing is unannounced.

OpenAI started rolling out ChatGPT Astra, described as its most powerful model to date, to customers on the $20 Plus subscription tier. The company has not announced when or whether free users will gain access. The rollout is a product launch event with no security incident involved.

BleepingComputer·Sep 7, 01:15 UTC · 9d agoModel release

Testing ads in ChatGPT

OpenAI begins testing ads in ChatGPT, promising clear labeling, answer independence, privacy protections, and user control.

OpenAI is starting to test advertisements in ChatGPT to support free access to the chatbot. The company states ads will carry clear labeling, remain independent of answers, include strong privacy protections, and offer user control options.

OpenAI News·Aug 11, 10:00 UTC · Aug 11, 2026AI industry

WeChat Zero-Click Worm Took Over Accounts on iPhone and Android via Incoming Calls

Researchers demonstrated a zero-click WeChat worm that hijacked accounts via incoming calls; Tencent blocked the exploit server-side after July disclosure, no real attacks reported.

Security firm Calif built a worm that seized WeChat accounts via incoming calls without any target interaction, demonstrating it spreading across three test phones (Android to iPhone to Android). Once exploited, the attacker gains full control of the WeChat account, including messages, calls, payments, and mini programs, though not the phone itself. Tencent mitigated the flaw server-side, confirmed blocked on 28 August, shipping WeChat 8.0.77 for Android and 8.0.76 for iOS on 21 August. No CVE has been assigned, Tencent published no advisory, and no attacks in the wild have been reported; WeChat/Weixin counts 1.439 billion monthly active users.

The Hacker News·Sep 8, 11:54 UTC · 7d agoVulnerability1

“Zero-click” WeChat worm could hijack accounts and spread via a single call

Researchers discovered a critical memory corruption flaw in WeChat's VoIP stack enabling a zero-click worm, WeWorm, that hijacks accounts via calls; Tencent patched it.

Calif researchers weaponized a memory corruption issue in WeChat's VoIP stack into "WeWorm", a worm that spreads through WeChat calls without user interaction, hijacks each victim's account, and propagates via saved contacts across iOS and Android, potentially reaching millions of devices within hours. Exploitation takes seconds and grants full account control, and chaining with other reported Android/iOS bugs could lead to full device control. Tencent issued updated WeChat versions for iOS and Android and applied server-side mitigations; technical details remain withheld. WeChat has over a billion users, overwhelmingly in China.

Help Net Security·Sep 8, 13:40 UTC · 7d agoVulnerability

WeWorm – First 0-Click Worm Spreading Through WeChat Calls Across iOS and Android

Researchers demonstrated WeWorm, a zero-click worm exploiting a memory-corruption flaw in WeChat's VoIP stack to spread via calls across iOS and Android.

Security firm Calif published WeWorm, a proof-of-concept zero-click worm exploiting a memory-corruption bug in WeChat's VoIP stack to spread through voice calls on iOS and Android without the victim answering. The demo chained a Pixel 10a, an iPhone 17e, and a second Pixel 10a, compromising each device while the call was still ringing and giving full control of the WeChat account. The attacker must already be on the victim's friend list, but compromised contacts become the propagation layer across a platform with over 1.4 billion monthly users. Calif reported the bug to Tencent in July 2026, and Tencent has since mitigated it; full technical details are withheld for a later conference presentation.

Cyber Security News·Sep 8, 12:09 UTC · 7d agoExploit / PoC

ChatGPT Ads expands across Europe

OpenAI is expanding ChatGPT Ads to 31 European markets, letting advertisers reach users as they explore, compare, and decide.

OpenAI announced that ChatGPT Ads is expanding to 31 European markets. The move extends OpenAI's advertising monetization, allowing advertisers to reach users during exploration, comparison of options, and purchase decisions. The announcement has no direct security relevance and carries no risk beyond competitive AI industry impact.

OpenAI News·Aug 18, 22:00 UTC · 28d agoAI industry

Learning never stops: How AI makes learning continuous

OpenAI report describes how students and educators use ChatGPT to extend learning continuously beyond the classroom.

OpenAI published a report examining how students and educators use ChatGPT to make learning more continuous. The report describes support that extends beyond the classroom, positioning ChatGPT as an ongoing learning companion. The release is part of OpenAI's education-focused communications rather than a technical or safety research paper.

OpenAI News·Aug 26, 10:00 UTC · 20d agoAI industry

What the 3M ChatGPT case reveals about AI governance

3M litigation shows ChatGPT prompts can become discoverable evidence, forcing enterprises to govern AI conversation records.

In the Watson Grinding explosion litigation, an engineering expert retained by 3M had used ChatGPT, and a surfaced prompt asked the system to 'show how 3M is 0% at fault'; after an off-record deposition demand, more than 350 pages of previously unproduced ChatGPT material were provided. The author argues AI interaction histories are becoming part of decision records and discovery material, a trend the American Bar Association has already examined. Enterprises are urged to manage retention, ownership, sharing, and deletion of AI conversation logs across tools like ChatGPT, Copilot, Claude, and Gemini.

CSO Online·Sep 14, 09:00 UTC · 1d agoPolicy & legal

Telegram Desktop XSS Vulnerability Lets Attackers Steal Entire Chat Histories

Stored XSS in Telegram Desktop HTML chat exports (CVSS 8.2) could let attacker-controlled inline keyboard buttons steal full chat histories.

ExPatch researchers Denis and Aleksander Rostilov found a stored XSS in Telegram Desktop's HTML chat export pipeline affecting builds before Beta 6.9.4 and Stable 7.0.1. Unsanitized inline keyboard button text becomes executable JavaScript when a user exports a chat and opens the HTML file in a browser, exposing messages, metadata, and local file paths, and enabling phishing overlays. Telegram patched the issue in commit 8457d13a during July 2026; no CVE had been assigned at disclosure time.

GBHackers·Sep 15, 10:11 UTC · 21h agoVulnerability

Multi-Vector (Late Interaction) Embedding Models with Sentence Transformers

Hugging Face details building and using multi-vector late-interaction embedding models with Sentence Transformers for retrieval workloads.

Hugging Face published a guide on multi-vector, late-interaction embedding models (ColBERT-style) supported through Sentence Transformers. The post covers how practitioners can build and use these models for retrieval and RAG pipelines. It is a developer tooling and technique write-up, not a security advisory.

Hugging Face Blog·Aug 18, 00:00 UTC · 29d agoAI tools & infra1

ChatGPT Flaw Let a Planted Prompt Send a Victim's Gmail Data to Another Account

Check Point showed a planted prompt could make ChatGPT silently exfiltrate Gmail data via a hidden cross-container channel; OpenAI took the service offline.

Check Point Research demonstrated that a single planted instruction in a ChatGPT conversation could make the model silently exfiltrate Gmail data, chat history, and files to an attacker's account while replying normally to the user. The covert channel abused read/write properties on files in an internal JFrog Artifactory instance shared by ChatGPT code-execution containers across accounts, turning package metadata into shared storage. Injection vectors included pasted prompts, shared conversations, and custom GPT builder instructions; default connected-app permissions allowed Gmail reads without user approval. OpenAI confirmed the internal service was taken offline after disclosure; this is Check Point's second reported ChatGPT covert channel after a DNS-based one fixed in February.

The Hacker News·Sep 8, 14:19 UTC · 7d agoAI safety & security

Inside ‘Project Lily’: The Humans Reading Your ChatGPT Chats

404 Media reveals OpenAI's 'Project Lily' has hundreds of contractors reading real ChatGPT user prompts, exposing sensitive personal data despite privacy filters.

404 Media reports that OpenAI employs hundreds of contractors who read real ChatGPT user prompts, including whole conversations, to rate and critique the chatbot's responses across a user base of over 900 million. Prompts are anonymized and run through OpenAI's Privacy Filter model, but the company acknowledged sensitive personal details can still reach reviewers, and 'user memories summaries' may reveal a user's location and personal context. The review work includes training ChatGPT to be less sycophantic and to stop anthropomorphizing itself, following lawsuits linking the sycophantic 4o model to multiple suicides. Anthropic confirmed it also uses human review to improve its models, and OpenAI's 'improve the model for everyone' data-sharing setting is on by default for free, Plus, and Pro users.

404 Media·Sep 14, 14:22 UTC · 1d agoAI safety & security

New Account Security Features for WhatsApp

Meta added stronger two-step verification and unknown-caller context features to WhatsApp to harden user account security against takeovers.

Meta announced new account security features for WhatsApp, including stronger two-step verification options. The rollout also adds additional context for calls from unknown callers. The features are designed to reduce account takeover risk and improve user confidence in call-based communication.

Meta Newsroom·Aug 25, 13:05 UTC · 21d agoTools

Chatgpt Develop Malicious Tools

Threat actors used ChatGPT to help develop and refine malicious tools for their operations, per a new report.

The report describes threat actors leveraging ChatGPT to create or improve malicious tools, an example of criminal abuse of generative AI. OpenAI has previously documented criminal and state-affiliated actors using ChatGPT for coding, translation, and reconnaissance support. The headline does not name specific actors, tools, or victim targets.

Infosecurity Magazine·Aug 16, 00:00 UTC · Aug 16, 2026AI safety & security

ChatGPT Sketch turns your bad drawings into detailed AI images

OpenAI launched ChatGPT Images 2.5 with a Sketch feature that turns user doodles into images, plus 50% lower latency.

OpenAI released ChatGPT Images 2.5 and a new Sketch feature, activated by typing @Sketch, that lets users draw doodles inside ChatGPT and use them as image generation prompts. The update claims more natural lighting, richer textures, better multi-turn instruction following, and up to 50% latency reduction versus Images 2.0. Users can also leave inline comments on parts of an image to request specific edits. It is available for ChatGPT, ChatGPT Work, and Codex users on desktop, mobile, and web.

The Verge · AI·Sep 8, 20:16 UTC · 7d agoAI industry

Premium seats are coming to ChatGPT Business

OpenAI launches premium seats for ChatGPT Business with 5x usage and no five-hour limit.

OpenAI introduced premium seats for ChatGPT Business, offering 5x more usage than standard seats. Premium seats remove the five-hour usage limit and add flexible seat options. The change targets heavier enterprise users of ChatGPT.

OpenAI News·Aug 10, 00:00 UTC · Aug 10, 2026AI industry

Meta adds three new features to keep WhatsApp accounts secure

Meta strengthens WhatsApp account security with alphanumeric two-step verification passwords, unknown-caller context on Android, and multiple passkeys per account.

Meta upgraded WhatsApp's two-step verification from a six-digit PIN to a longer alphanumeric password that can include special characters. On Android, calls from unsaved numbers now show context such as whether the number is registered in another country or shares groups with the recipient, countering scam urgency. More than one billion users have set up passkeys, and users can now register multiple passkeys on one account across mixed platforms.

Help Net Security·Aug 26, 00:00 UTC · 21d agoTools

ChatGPT advanced account security adds passkeys and hardware keys

OpenAI launches Advanced Account Security for ChatGPT and Codex, replacing passwords with passkeys or hardware keys and disabling email/SMS recovery.

The opt-in setting disables password sign-in plus email and SMS account recovery for ChatGPT and Codex accounts, allowing only passkeys, hardware security keys, and user-held recovery keys, with shortened sessions and automatic exclusion of enrolled accounts' conversations from model training. OpenAI partnered with Yubico to offer discounted bundles of the YubiKey C Nano and C NFC, while any FIDO2/WebAuthn-compliant key or software passkey is supported, mirroring standards adopted by Google, Microsoft, and GitHub. Individual members of Trusted Access for Cyber using the most permissive models must enable the setting from June 1, 2026, or their organizations can attest to phishing-resistant authentication in their single sign-on.

Help Net Security·Aug 24, 04:21 UTC · 23d agoAI industry

Notes on gotchas while migrating 35kb preprompts from Opus to self-hosted Ollama

Opinion piece urges migrating 35KB preprompts from Anthropic/OpenAI to self-hosted Ollama, citing session privacy risks and safety filters blocking security research.

The author documents gotchas migrating 35KB preprompts from Claude Opus to self-hosted Ollama, motivated by fears that frontier providers train on user sessions, citing the OpenAI Navier-Stokes controversy. The piece argues inference providers cannot audit their own retention or training pipelines and that only self-hosted hardware offers verifiable privacy. It also criticizes frontier safety filters for refusing vulnerability research tasks and calls for models that support exploitability testing in CI/CD pipelines.

Hacker News · AI·Sep 14, 13:59 UTC · 1d agoAI industryHN 41↑ · 13 comments1

NCP-ArchPreview Technical Report: Moving towards Latent Space Language Models through Next Concept Prediction

An 8.9B-parameter latent-space language model using next-concept prediction matches OLMo-3-7B pretraining loss with only 51.3% of the training tokens.

NCP-ArchPreview augments next-token prediction with Next Concept Prediction over a product-quantized concept vocabulary built from hidden states, trained jointly end-to-end. The 8.9B model was trained on 5.73T tokens from the Dolma-3 dataset, the largest latent-space language model demonstration to date. It consumes 51.3% of the tokens to reach OLMo-3-7B's final pretraining loss and outperforms it by 2.45 points on the downstream macro-average, including a 5.99-point GSM8K gain. The learned latent space also enables lightweight domain adaptation via a 17M-parameter VQ module and improves speculative drafting accepted length by 4.17%.

Hugging Face daily papers·Sep 8, 20:00 UTC · 7d agoAI research1