Vidar Infostealer Spreads via Fake CAPTCHAs, Hides in JPEG and TXT Files
New version of Vidar infostealer spreads via fake CAPTCHAs, hides in JPEG and TXT files, uses fileless attacks and steals browser, crypto wallet data.
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1225 notíciasFake CAPTCHA IRSF Scam and 120 Keitaro Campaigns Drive Global SMS, Crypto Fraud
Cybersecurity researchers have disclosed details of a telecommunications fraud campaign that uses fake CAPTCHA verification tricks to dupe unsuspecting users into sending international text messages that incur charges on their mobile bills, generating illicit revenue for the thre…
Microsoft Entra Agent ID Flaw Enabled Tenant Takeover via Privilege Escalation
Microsoft Entra Agent ID flaw allowed privilege escalation and tenant takeover via Service Principal abuse, now fully patched by Microsoft.
American utility firm Itron discloses breach of internal IT network
Itron, Inc. has disclosed, via an 8-K filing with the U.S. Securities and Exchange Commission (SEC), a cybersecurity incident in which an unauthorized third party accessed certain internal systems. [...]
Threat actor uses Microsoft Teams to deploy new “Snow” malware
A threat group tracked as UNC6692 uses social engineering to deploy a new, custom malware suite named 'Snow' which includes a browser extension, a tunneler, and a backdoor. [...]
Fake CAPTCHA Scam Abuses Verification Clicks to Send Costly International Texts
Research from Infoblox reveals a massive Click2SMS fraud scheme using fake CAPTCHAs and back button hijacking to trick victims into sending costly international texts.
Researchers Uncover Pre-Stuxnet ‘fast16’ Malware Targeting Engineering Software
Cybersecurity researchers have discovered a new Lua-based malware created years before the notorious Stuxnet worm that aimed to sabotage Iran's nuclear program by destroying uranium enrichment centrifuges. According to a new report published by SentinelOne, the previously undocum…
CISA Adds 4 Exploited Flaws to KEV, Sets May 2026 Federal Deadline
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added four vulnerabilities impacting SimpleHelp, Samsung MagicINFO 9 Server, and D-Link DIR-823X series routers to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation.…
Firestarter malware survives Cisco firewall updates, security patches
Cybersecurity agencies in the U.S. and U.K. are warning about a custom malware called Firestarter persisting on Cisco Firepower and Secure Firewall devices running Adaptive Security Appliance (ASA) or Firepower Threat Defense (FTD) software. [...]
New ClickFix attack Hides in Native Windows Tools to Reduce Detection Risk
Fake CAPTCHA ClickFix attack tricks users into running malicious commands, using cmdkey and regsvr32 to maintain persistence and avoid detection on Windows
New BlackFile extortion group linked to surge of vishing attacks
A new financially motivated hacking group tracked as BlackFile has been linked to a wave of data theft and extortion attacks against retail and hospitality organizations since February 2026. [...]
Advisory for Microsoft Teams Helpdesk Impersonation Attacks
The post Advisory for Microsoft Teams Helpdesk Impersonation Attacks appeared first on Clearwater.
New ‘Pack2TheRoot’ flaw gives hackers root Linux access
A new vulnerability dubbed Pack2TheRoot could be exploited in the PackageKit daemon to allow local Linux users to install or remove system packages and gain root permissions. [...]
FIRESTARTER Backdoor Hit Federal Cisco Firepower Device, Survives Security Patches
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has revealed that an unnamed federal civilian agency's Cisco Firepower device running Adaptive Security Appliance (ASA) software was compromised in September 2025 with malware called FIRESTARTER. FIRESTARTER, per CI…
NASA Employees Duped in Chinese Phishing Scheme Targeting U.S. Defense Software
The Office of Inspector General (OIG) of the U.S. National Aeronautics and Space Administration (NASA) has revealed how a Chinese national posed as a U.S. researcher as part of a spear-phishing campaign to obtain sensitive information from the space agency, as well as from govern…
TeamPCP Hijacks Bitwarden CLI, Uses Dependabot to Deploy Shai-Hulud Malware
GitGuardian uncovers TeamPCP attack on Bitwarden CLI, abusing GitHub Dependabot to spread Shai-Hulud and poison AI coding tools.
Over 10,000 Zimbra servers vulnerable to ongoing XSS attacks
Over 10,000 Zimbra Collaboration Suite (ZCS) instances exposed online are vulnerable to ongoing attacks exploiting a cross-site scripting (XSS) security flaw. [...]
AI Phishing Is No. 1 With a Bullet for Cyberattackers
In the last six months, companies have seen a significant influx of AI-powered phishing, as cyberattackers progress from small campaigns to 1-to-1 personalized attacks.
North Korea's Lazarus Targets macOS Users via ClickFix
Lazarus continues leveraging ClickFix for initial access and data theft, in this case, against Mac-centric organizations and their high-value leaders.
26 FakeWallet Apps Found on Apple App Store Targeting Crypto Seed Phrases
Cybersecurity researchers have discovered a set of malicious apps on the Apple App Store that impersonate popular cryptocurrency wallets in an attempt to steal recovery phrases and private keys since at least fall 2025. "Once launched, these apps redirect users to browser pages d…