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Leaks, data breaches, and ransom notes: The worst hacks of 2026 so far

TechCrunch's 2026 roundup covers SSA data exposure, Iranian water-utility attacks, Klue breach hitting ~200 firms, and Meta AI chatbot account hijacks.

TechCrunch's mid-year roundup highlights a whistleblower claim that DOGE uploaded a live Social Security database copy to an unsecured third-party server, which House Democrats called potentially the largest US breach in history. CISA reported Iranian hackers targeted over 100 US water providers over the summer, while Russian-linked attacks hit Polish, Swedish, and Norwegian energy and water infrastructure. Market research firm Klue was breached via a stale 2022 pilot credential, exposing cloud keys of ~200 customers including Jamf, HackerOne, and LastPass to extortion gang Icarus. Separately, tens of thousands of Instagram accounts were hijacked by abusing Meta's AI chatbot to trigger password resets to attacker-controlled emails.

TechCrunch · SecuritySep 15, 16:00 UTC · 1d agoData breach in the wild

Attacker Hijacks AI Coding Assistant Session, Spreads Shai-Hulud Across About 100 Repositories

Mandiant says an attacker hijacked an AI coding-assistant session at a SaaS provider and spread the Shai-Hulud worm across roughly 100 repositories, stealing secrets.

Mandiant's September 2026 report describes an attacker hijacking an active AI coding-assistant session at an unnamed SaaS provider, then getting a poisoned package recommendation accepted and installing an infostealer via a malicious PyPI package. The attacker stole GitHub OAuth tokens, deployed the self-spreading Shai-Hulud worm across approximately 100 internal repositories, and stole repository secrets and product source code. Poisoning a package in the company's official namespace caused a second employee to pull the compromised version and become infected. Mandiant recommends verifying AI-recommended dependencies against checksums and allowlists, keeping secrets out of extension reach, and routing dependency traffic through internal repositories.

The Hacker NewsSep 16, 13:37 UTC · 20h agoData breach in the wild

CenterPoint Energy Confirms Data Breach Exposing Customers’ Personal Information

CenterPoint Energy confirmed an unauthorized third party accessed customer personal data via an external system, disclosed in an SEC Form 8-K filing.

CenterPoint Energy disclosed in a September 14, 2026 Form 8-K that an unauthorized third party obtained personal information of some customers through one of the company's external systems. The company learned of the incident after an online post claimed possession of a customer dataset, then activated incident-response protocols and engaged external forensic specialists. Electric and gas delivery operations were unaffected and the company does not expect a material financial impact, though response, notification, and compliance costs are being incurred. The number of affected customers, data types, and threat actor remain undisclosed as the investigation continues.

GBHackersupdated Sep 16, 15:32 UTC · 18h agofirst Sep 16, 11:40 UTC · 22h agoData breach 5 sources

America's Driver's License Breach Is a National Security Disaster

Dark web service Nexus sells 153 million US/Canadian driver's licenses linked to a breach of identity verifier IDScan.

Krebs on Security revealed a dark web service, Nexus, selling access to 153 million driver's licenses and 3 million travel documents from US and Canadian citizens, roughly 63 percent of all US licenses. Circumstantial evidence links the data to identity verification firm IDScan, which confirmed it is investigating a breach, and the FBI is probing the incident. Licenses belonging to senior US officials, including Pete Hegseth, an FBI assistant director, and Krebs's own contacts were verified as genuine. The exfiltration appears ongoing, with the database growing by nearly 400,000 licenses in a single day, and the data carries significant national security value for foreign intelligence services.

Hacker News · securitySep 15, 15:58 UTC · 1d agoData breach HN 26↑ · 4 comments3· 1 read

Revolut’s paperwork breach shows why insurers are rethinking what counts as a ‘cyber attack’

Revolut handed customer data to an attacker using a spoofed government email, prompting insurers to rethink cyber attack coverage definitions.

Revolut disclosed customer data after receiving a request from what appeared to be a genuine government email address; no servers were breached and no malware was involved. The social engineering incident has become a test case for how cyber insurers define a 'cyber attack'. The report is by Matthew Sellers. It highlights a growing gap between technical intrusions and data-loss incidents caused by impersonation.

DataBreaches.netSep 15, 11:49 UTC · 1d agoData breach

240,000 Hit by Data Breach at Japan’s Digital Agency

Japan's Digital Agency says hackers exploited a VPN flaw and a maintenance account to steal ~246,000 records on 240,000 people.

Japan's Digital Agency disclosed a breach of its Government Solution Service (GSS) affecting roughly 240,000 individuals, discovered in late June. Attackers exploited a publicly disclosed vulnerability in a VPN product and used a maintenance and operations employee's account to access over 246,000 records, including names (~236,000), email addresses (~231,000), phone numbers (~94,000), and addresses (~1,000). The agency blocked external access to the affected server, suspended the account, and said no ID numbers or financial account data were compromised.

SecurityWeekupdated Sep 15, 14:43 UTC · 1d agofirst Sep 15, 11:45 UTC · 1d agoData breach in the wild 2 sources