Latest cybersecurity reporting from selected sources.

Calif. Lawsuit: Genetics Testing Firm Missed Red Flags Before Massive 2023 BreachHackers in 2023 went undetected for five months in genetics testing firm 23andMe's IT systems, despite multiple unheeded warning signs, alleges California's attorney general in a lawsuit. Hackers in late April 2023 began accessing 23andMe's systems by using compromised credentials.

Blames outfit called Context.ai, which reckons an agentic OAuth tangle caused the incident Vercel, the company that created the open source Next.js web development framework, has a data leak that led to compromise of some customer credentials, and blamed an outfit called Context.ai for the mess.…

AI Dependency Attack Reportedly Exposes Data and Source CodeA LiteLLM supply-chain compromise enabled attackers to harvest credentials and access internal environments at scale at Mercor. The firm was the first to confirm a LiteLLM breach, and researchers are warning about growing AI system exposure and limited visibility.

Cybersecurity company’s annual report issues warning over a “mass-marketed impersonation crisis” over attackers abusing legitimate credentials

Amazon's AWS GuardDuty security team is warning of an ongoing crypto-mining campaign that targets its Elastic Compute Cloud (EC2) and Elastic Container Service (ECS) using compromised credentials for Identity and Access Management (IAM). [...]

Microsoft Says Hackers Pivoting to Identity CompromiseHackers are as likely to log in as break in, warns Microsoft in an annual assessment of cyberthreats. During the first half of 2025, identity-based attacks rose by 32% due to credentials stolen by infostealers or password and email combinations plucked from bulk data breaches.

Fancy Bear can't keep its claws out of Outlook inboxes The UK government is warning that Russia's APT28 (also known as Fancy Bear or Forest Blizzard) has been deploying previously unknown malware to harvest Microsoft email credentials and steal access to compromised accounts.…

Microsoft warns that Chinese threat actors use the Quad7 botnet, compromised of hacked SOHO routers, to steal credentials in password-spray attacks. [...]

Mandiant warns criminal gang UNC5537, which may be friendly with Scattered Spider, is on the rampage An unknown financially motivated crime crew has swiped a "significant volume of records" from Snowflake customers' databases using stolen credentials, according to Mandiant.…

Company Says Single-Factor Authentication Accounts Are to Blame - Not a FlawHackers are targeting clients of artificial intelligence data platform provider Snowflake that lack multifactor authentication, the company warns. Threat actors are compromising organizations’ Snowflake customer tenants by using stolen credentials obtained by info-stealing malware, said Mandiant.

Microsoft Warns APT28's GooseEgg Tool Enables Credential TheftRussian military intelligence hackers are using an 18 month-old vulnerability in the Windows print spooler utility to deploy a custom tool that elevates privileges and steals credentials. Microsoft says it's seen post-compromise activities against Ukrainian, European and North American governments.

Roku warns that 576,000 accounts were hacked in new credential stuffing attacks after disclosing another incident that compromised 15,000 accounts in early March. [...]

But IBM warns credential compromise is number one initial access vector

Password manager accounts may have, ironically, been compromised via simple credential stuffing, thanks to password reuse.

Microsoft on Tuesday disclosed that a large-scale phishing campaign targeted over 10,000 organizations since September 2021 by hijacking Office 365's authentication process even on accounts secured with multi-factor authentication (MFA)

Microsoft is warning that the BlackCat ransomware crew is leveraging exploits for unpatched Exchange server vulnerabilities to gain access to targeted networks