Cybersecurity News

Microsoft says threat actors linked to ShinyHunters, Helix, and other extortion gangs are using passkey and single sign-on-themed social engineering attacks to compromise corporate Microsoft accounts and steal data from Microsoft 365 services. [...]

Analysis of 2.47 million simulated attacks shows why organizations should measure credential leaks and reporting, not just clicks. The post Phishing Research Challenges Conventional Security Awareness Testing appeared first on SecurityWeek.

Threat actors are exploiting critical and high-severity vulnerabilities in JFrog Artifactory to bypass authentication, gain administrative privileges, and deploy a Rust backdoor on vulnerable self-hosted servers. [...]

The critical-severity path traversal flaw allows unauthenticated attackers to read arbitrary files from the GitLab server. The post GitLab Vulnerability Exploited One Day After Disclosure appeared first on SecurityWeek.

Noteworthy stories that might have slipped under the radar: Invisible Unicode slips past phishing filters, US puts $10 million bounty on Iranian cyber official, military ties of Chinese hacking group QTFY. The post In Other News: InjectEave Attack, SIM Swapper Sentenced, Glasswing Findings Review appeared first on SecurityWeek.

Threat actors are abusing trusted AI platforms to host malicious content, poison search results, and trick users into installing malware. Huntress examines campaigns targeting AI users through weaponized Claude Artifacts, shared AI conversations, sponsored search results, and ClickFix-style lures. [...]

KnowBe4 researchers observed a new phishing campaign leveraging Microsoft 365’s Direct Send to send malicious emails

Hackers compromised the Brevo marketing platform and used that access to send phishing emails to users of Trezor, BitBox, and CoinTracking. The post Trezor Says 347,000 Users Received Phishing Emails After Brevo Hack appeared first on SecurityWeek.

Oleksii Oleksiyovych Lytvynenko has been sentenced to 4 years in prison after he was arrested in Ireland in 2023. The post Ukrainian Conti Ransomware Developer Sentenced to 4 Years in US Prison appeared first on SecurityWeek.

GitLab urged users on Thursday to patch their servers immediately against a maximum-severity path traversal vulnerability tracked as CVE-2026-85706. [...]

Tracked as CVE-2026-85102 and CVE-2026-85103, the flaws could be exploited for remote code execution. The post Check Point Patches Critical VPN Vulnerabilities appeared first on SecurityWeek.

Financials have not been disclosed, but the estimated cost is in the tens of millions of dollars. The post Kiteworks Acquires Bonfy.AI to Fill the AI Gap in Data Governance appeared first on SecurityWeek.

A misconfigured test server containing engineering material, including internal configurations, was accessed by threat actors. The post Surfshark Systems Targeted by Hackers appeared first on SecurityWeek.

Microsoft has fixed a bug that prevented Teams and Outlook from launching on ARM-based Windows devices after installing updates released since the August 2026 Patch Tuesday. [...]

A new Syskit study has shown that only 43% of organizations with AI agents deployed in Microsoft 365 environments completed a permission review before doing so

Anthropic reveals how criminal groups are increasingly targeting AI vendors' own infrastructure, including to steal a pre-release Claude model. The post Anthropic Says Russian Hackers Used Claude AI to Automate Malware Evasion appeared first on SecurityWeek.

Trezor has revealed that phishing attacks against its customers earlier this week targeted 347,000 email addresses and affected 2,500 users who clicked an embedded malicious link. [...]

A Ukrainian national has been sentenced to four years in prison for his role in Conti ransomware attacks between 2021 and 2022. [...]

A new Android malware strain called Mantax Otax combines ransomware and spyware capabilities to encrypt files, steal sensitive data, and spam and harass victims. [...]

Windows admins report that the September 2026 security updates are causing Remote Desktop Services (RDS) failures on Windows Server 2019, 2022, and 2025 servers, preventing users from connecting and, in some cases, requiring a hard reset to restore functionality. [...]

Oleksii Lytvynenko joined the notorious group in 2021 and was directly involved in attacks on at least 12 companies. The post Conti ransomware crew member sentenced to four years in prison appeared first on CyberScoop.

Mandiant founder and cybersecurity veteran brings more than 30 years of public and private sector experience to Amazon’s board. The post Mandiant Founder Kevin Mandia Joins Amazon Board appeared first on SecurityWeek.

The Republican lawmaker called OpenAI’s leadership decisions “reckless,” and used recent warnings about the existential risk of AI to bolster his inquiry. The post Hawley probes OpenAI over Hugging Face breach appeared first on CyberScoop.

The report details a Russian-aligned espionage campaign against more than 20 organizations, an exploit foundry run by Chinese undergraduates and ShinyHunters-affiliated breaches, among other disrupted operations. The post AI lets small actors run state-level hacking campaigns, Anthropic report finds appeared first on CyberScoop.

Surfshark disclosed that hackers accessed one of its internal test servers after a configuration error exposed it to the internet. [...]

Microsoft Excel users report that this week's KB5002914 Office security update is breaking copy-and-paste operations and formula dragging, with affected users saying that removing or rolling back the update restores normal functionality. [...]

Significant cybersecurity M&A deals announced by Brinqa, Cribl, Echo, Fortinet, Kiteworks, Palo Alto Networks, and Visa. The post Cybersecurity M&A Roundup: 33 Deals Announced in August 2026 appeared first on SecurityWeek.

A threat actor, likely Russian-speaking, used hundreds of AI agents to develop and launch a global exploitation campaign targeting vulnerable PaperCut NG/MF servers. [...]

Cisco Talos says two recently patched Secure Firewall Management Center (FMC) vulnerabilities have been exploited by three separate threat clusters linked to ransomware and state-sponsored attacks. [...]

Identity verification company IDScan has confirmed that hackers accessed customer data stored in its cloud platform, days after reports linked the company to a massive database containing more than 153 million driver's license scans. [...]