Microsoft has pushed back against claims that multiple prompt injection and sandbox-related issues raised by a security engineer in its Copilot AI assistant constitute security vulnerabilities. The development highlights a growing divide between how vendors and researchers define risk in generative AI systems. [...]
A threat actor known as Zestix has been offering to corporate data stolen from dozens of companies likely after breaching their ShareFile, Nextcloud, and OwnCloud instances. [...]
Californians are getting a new, supercharged way to stop data brokers from hoarding and selling their personal information, as a recently enacted law that’s among the strictest in the nation took effect at the beginning of the year. According to the California Privacy Protection Agency, more than 500 …
A new ClickFix social engineering campaign is targeting the hospitality sector in Europe, using fake Windows Blue Screen of Death (BSOD) screens to trick users into manually compiling and executing malware on their systems. [...]
Brightspeed, one of the largest fiber broadband companies in the United States, is investigating security breach and data theft claims made by the Crimson Collective extortion gang. [...]
Popular AI-powered integrated development environment solutions, such as Cursor, Windsurf, Google Antigravity, and Trae, recommend extensions that are non-existent in the OpenVSX registry, allowing threat actors to claim the namespace and upload malicious extensions. [...]
Ledger is informing some customers that their personal data has been exposed after hackers breached the systems of third-party payment processor Global-e. [...]
As agentic AI adoption accelerates, identity is emerging as the primary security challenge. Token Security explains why AI agents behave like a new class of identity and why CISOs must manage their access, lifecycle, and risk. [...]
NordVPN denied allegations that its internal Salesforce development servers were breached, saying that cybercriminals obtained "dummy data" from a trial account on a third-party automated testing platform. [...]
The ShinyHunters hacking group claims it breached the systems of cybersecurity firm Resecurity and stole internal data, while Resecurity says the attackers only accessed a deliberately deployed honeypot containing fake information used to monitor their activity. [...]
The Covenant Health organization has revised to nearly 500,000 the number of individuals affected by a data breach discovered last May. [...]
Blockchain investigation firm TRM Labs says ongoing cryptocurrency thefts have been traced to the 2022 LastPass breach, with attackers draining wallets years after encrypted vaults were stolen and laundering the crypto through Russian exchanges. [...]
Over 10,000 Internet-exposed Fortinet firewalls are still vulnerable to attacks exploiting a five-year-old two-factor authentication (2FA) bypass vulnerability. [...]
Trust Wallet believes the compromise of its web browser to steal roughly $8.5 million from over 2,500 crypto wallets is likely related to an "industry-wide" Sha1-Hulud attack in November. [...]
2025 was a big year for cybersecurity, with cyberattacks, data breaches, threat groups reaching new notoriety levels, and, of course, zero-day flaws exploited in breaches. Some stories, though, were more impactful or popular with our readers than others. This article explores 15 of the biggest cybersecurity stories of 2025 …
A fourth wave of the "GlassWorm" campaign is targeting macOS developers with malicious VSCode/OpenVSX extensions that deliver trojanized versions of crypto wallet applications. [...]
New York City's 2026 mayoral inauguration of Zohran Mamdani has published a list of banned items for the event, specifically prohibiting the Flipper Zero and Raspberry Pi devices. [...]
The decentralized intellectual property platform Unleash Protocol has lost around $3.9 million worth of cryptocurrency after someone executed an unauthorized contract upgrade that allowed asset withdrawals. [...]
In a roundup of the top stories of 2024, Ars included a supply-chain attack that came dangerously close to inflicting a catastrophe for thousands—possibly millions—of organizations, which included a large assortment of Fortune 500 companies and government agencies. Supply-chain attacks played prominently again this year, as a …
A new cybercrime tool called ErrTraffic allows threat actors to automate ClickFix attacks by generating 'fake glitches' on compromised websites to lure users into downloading payloads or following malicious instructions [...]
The European Space Agency (ESA) confirmed that attackers recently breached servers outside its corporate network, which contained what it described as "unclassified" information on collaborative engineering activities. [...]
A newly discovered campaign, which researchers call Zoom Stealer, is affecting 2.2 million Chrome, Firefox, and Microsoft Edge users through 18 extensions that collect online meeting-related data like URLs, IDs, topics, descriptions, and embedded passwords. [...]
Two former employees of cybersecurity incident response companies Sygnia and DigitalMint have pleaded guilty to targeting U.S. companies in BlackCat (ALPHV) ransomware attacks in 2023. [...]
CISA ordered U.S. federal agencies to patch an actively exploited MongoDB vulnerability (MongoBleed) that can be exploited to steal credentials, API keys, and other sensitive data. [...]
A new sample of the ToneShell backdoor, typically seen in Chinese cyberespionage campaigns, has been delivered through a kernel-mode loader in attacks against government organizations. [...]