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Latest news and stories from BleepingComputer.com From a bleeping computer to a working computer.
Windows 11 Notepad flaw let files execute silently via Markdown links
Microsoft has fixed a "remote code execution" vulnerability in Windows 11 Notepad that allowed attackers to execute local or remote programs by tricking users into clicking specially crafted Markdown links, without displaying any Windows security warnings. [...]
https://www.bleepingcomputer.com/news/microsoft/windows-11-notepad-flaw-let-files-execute-silently-via-markdown-links/
Crazy ransomware gang abuses employee monitoring tool in attacks
A member of the Crazy ransomware gang is abusing legitimate employee monitoring software and the SimpleHelp remote support tool to maintain persistence in corporate networks, evade detection, and prepare for ransomware deployment. [...]
https://www.bleepingcomputer.com/news/security/crazy-ransomware-gang-abuses-employee-monitoring-tool-in-attacks/
Proactive strategies for cyber resilience with Wazuh
Cyber resilience means anticipating threats, detecting them early, and recovering fast when incidents occur. Wazuh shows how its open source SIEM and XDR unify visibility, detection, and automated response to strengthen proactive defense. [...]
https://www.bleepingcomputer.com/news/security/proactive-strategies-for-cyber-resilience-with-wazuh/
Microsoft releases Windows 11 26H1 for select and upcoming CPUs
Microsoft has announced Windows 11 26H1, but it's not for existing PCs. Instead, it will ship on devices with Snapdragon X2 processors and possibly other rumored ARM chips.w [...]
https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-windows-11-26h1-for-select-and-upcoming-cpus/
North Korean hackers use new macOS malware in crypto-theft attacks
North Korean hackers are running tailored campaigns using AI-generated video and the ClickFix technique to deliver malware for macOS and Windows to targets in the cryptocurrency sector. [...]
https://www.bleepingcomputer.com/news/security/north-korean-hackers-use-new-macos-malware-in-crypto-theft-attacks/
Microsoft releases Windows 10 KB5075912 extended security update
Microsoft has released the Windows 10 KB5075912 extended security update to fix February 2026 Patch Tuesday vulnerabilities, including six zero-days, and continue rolling out replacements for expiring Secure Boot certificates. [...]
https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-windows-10-kb5075912-extended-security-update/
Windows 11 KB5077181 & KB5075941 cumulative updates released
Microsoft has released Windows 11 KB5077181 and KB5075941 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. [...]
https://www.bleepingcomputer.com/news/microsoft/windows-11-kb5077181-and-kb5075941-cumulative-updates-released/
Microsoft rolls out new Secure Boot certificates before June expiration
Microsoft has begun rolling out updated Secure Boot certificates through monthly Windows updates to replace the original 2011 certificates that will expire in late June 2026. [...]
https://www.bleepingcomputer.com/news/microsoft/microsoft-rolls-out-new-secure-boot-certificates-before-june-expiration/
How to Automate AWS Incident Investigation with Tines and AI
Cloud incidents drag on when analysts have to leave cases to hunt through AWS consoles and CLIs. Tines shows how automated agents pull AWS CLI data directly into cases, reducing MTTR and manual investigation work. [...]
https://www.bleepingcomputer.com/news/security/how-to-automate-aws-incident-investigation-with-tines-and-ai/
ZeroDayRAT malware grants full access to Android, iOS devices
A new commercial mobile spyware platform dubbed ZeroDayRAT is being advertised to cybercriminals on Telegram as a tool that provides full remote control over compromised Android and iOS devices. [...]
https://www.bleepingcomputer.com/news/security/zerodayrat-malware-grants-full-access-to-android-ios-devices/
Chinese cyberspies breach Singapore's four largest telcos
The Chinese threat actor tracked as UNC3886 breached Singapore's four largest telecommunication service providers, Singtel, StarHub, M1, and Simba, at least once last year. [...]
https://www.bleepingcomputer.com/news/security/chinese-cyberspies-breach-singapores-four-largest-telcos/
Hackers breach SmarterTools network using flaw in its own software
SmarterTools confirmed last week that the Warlock ransomware gang breached its network after compromising an email system, but did not impact business applications or account data. [...]
https://www.bleepingcomputer.com/news/security/hackers-breach-smartertools-network-using-flaw-in-its-own-software/
BeyondTrust warns of critical RCE flaw in remote support software
BeyondTrust warned customers to patch a critical security flaw in its Remote Support (RS) and Privileged Remote Access (PRA) software that could allow unauthenticated attackers to execute arbitrary code remotely. [...]
https://www.bleepingcomputer.com/news/security/beyondtrust-warns-of-critical-rce-flaw-in-remote-support-software/
Microsoft: Exchange Online flags legitimate emails as phishing
Microsoft is investigating an ongoing Exchange Online issue that mistakenly flags legitimate emails as phishing and quarantines them. [...]
https://www.bleepingcomputer.com/news/microsoft/microsoft-exchange-online-flags-legitimate-emails-as-phishing/
New tool blocks imposter attacks disguised as safe commands
A new open-source and cross-platform tool called Tirith can detect homoglyph attacks over command-line environments by analyzing URLs in typed commands and stopping their execution. [...]
https://www.bleepingcomputer.com/news/security/new-tool-blocks-imposter-attacks-disguised-as-safe-commands/
Microsoft Store Outlook add-in hijacked to steal 4,000 Microsoft accounts
The AgreeTo add-in for Outlook has been hijacked and turned into a phishing kit that stole more than 4,000 Microsoft account credentials. [...]
https://www.bleepingcomputer.com/news/security/microsoft-store-outlook-add-in-hijacked-to-steal-4-000-microsoft-accounts/
Police arrest seller of JokerOTP MFA passcode capturing tool
The Netherlands Police have arrested a a 21-year-old man from Dordrecht, suspected of selling access to the JokerOTP phishing automation tool that can intercept one-time passwords (OTP) for hijacking accounts. [...]
https://www.bleepingcomputer.com/news/security/police-arrest-seller-of-jokerotp-mfa-passcode-capturing-tool/
LummaStealer infections surge after CastleLoader malware campaigns
A surge in LummaStealer infections has been observed, driven by social engineering campaigns leveraging the ClickFix technique to deliver the CastleLoader malware. [...]
https://www.bleepingcomputer.com/news/security/lummastealer-infections-surge-after-castleloader-malware-campaigns/
New Linux botnet SSHStalker uses old-school IRC for C2 comms
A newly documented Linux botnet named SSHStalker is using the IRC (Internet Relay Chat) communication protocol for command-and-control (C2) operations. [...]
https://www.bleepingcomputer.com/news/security/new-linux-botnet-sshstalker-uses-old-school-irc-for-c2-comms/
Malicious 7-Zip site distributes installer laced with proxy tool
A fake 7-Zip website is distributing a trojanized installer of the popular archiving tool that turns the user's computer into a residential proxy node. [...]
https://www.bleepingcomputer.com/news/security/malicious-7-zip-site-distributes-installer-laced-with-proxy-tool/
Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws
Today is Microsoft's February 2026 Patch Tuesday with security updates for 58 flaws, including 6 actively exploited and three publicly disclosed zero-day vulnerabilities. [...]
https://www.bleepingcomputer.com/news/microsoft/microsoft-february-2026-patch-tuesday-fixes-6-zero-days-58-flaws/
Volvo Group North America customer data exposed in Conduent hack
Volvo Group North America disclosed that it suffered an indirect data breach stemming from the compromise of IT systems at American business services giant Conduent, of which Volvo is a customer. [...]
https://www.bleepingcomputer.com/news/security/volvo-group-north-america-customer-data-exposed-in-conduent-hack/
Microsoft 365 outage takes down admin center in North America
Microsoft is investigating an outage that blocks some administrators with business or enterprise subscriptions from accessing the Microsoft 365 admin center. [...]
https://www.bleepingcomputer.com/news/microsoft/microsoft-365-outage-takes-down-admin-center-in-north-america/
Microsoft announces new mobile-style Windows security controls
Microsoft wants to introduce smartphone-style app permission prompts in Windows 11 to request user consent before apps can access sensitive resources such as files, cameras, and microphones. [...]
https://www.bleepingcomputer.com/news/microsoft/microsoft-announces-new-mobile-style-windows-security-controls/
Fugitive behind $73M 'pig butchering' scheme gets 20 years in prison
A dual Chinese and St. Kitts and Nevis national was sentenced to 20 years in prison in absentia for his role in an international cryptocurrency investment scheme (also known as pig butchering or romance baiting) that defrauded victims of more than $73 million. [...]
https://www.bleepingcomputer.com/news/security/fugitive-behind-73m-pig-butchering-scheme-gets-20-years-in-prison/
Threat actors exploit SolarWinds WDH flaws to deploy Velociraptor
Hackers are now exploiting SolarWinds Web Help Desk (WHD) vulnerabilities to gain code execution rights on exposed systems and deploy legitimate tools, including the Velociraptor forensics tools, for persistence and remote control. [...]
https://www.bleepingcomputer.com/news/security/threat-actors-exploit-solarwinds-wdh-flaws-to-deploy-velociraptor/
Password guessing without AI: How attackers build targeted wordlists
Attackers don't need AI to crack passwords, they build targeted wordlists from an organization's own public language. This article explains how tools like CeWL turn websites into high-success password guesses and why complexity rules alone fall short. [...]
https://www.bleepingcomputer.com/news/security/password-guessing-without-ai-how-attackers-build-targeted-wordlists/
Men charged in FanDuel scheme fueled by thousands of stolen identities
Two Connecticut men face federal charges for allegedly defrauding FanDuel and other online gambling sites of $3 million over several years using the stolen identities of approximately 3,000 victims. [...]
https://www.bleepingcomputer.com/news/security/men-charged-in-massive-fanduel-fraud-scheme-fueled-by-thousands-of-stolen-identities/
European Commission discloses breach that exposed staff data
The European Commission is investigating a breach after finding evidence that its mobile device management platform was hacked. [...]
https://www.bleepingcomputer.com/news/security/european-commission-discloses-breach-that-exposed-staff-data/
State actor targets 155 countries in 'Shadow Campaigns' espionage op
A new state-aligned cyberespionage threat group tracked as TGR-STA-1030/UNC6619, has conducted a global-scale operation dubbed the "Shadow Campaigns," where it targeted government infrastructure in 155 countries. [...]
https://www.bleepingcomputer.com/news/security/state-actor-targets-155-countries-in-shadow-campaigns-espionage-op/