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Cybersecurity Headlines

Daily stories from the world of information security. To delve into any daily story, head to CISOseries.com.

info_outline Instructure discloses breach, DigiCert revokes certificates, Silver Fox targets Indian and Russian orgs 05/05/2026
info_outline Telegram Mini Apps malware, cPanel is Sorry, patch wave warning 05/04/2026
info_outline The Department of Know: GitHub drama, AI deletes production data, Claude Security Beta 05/01/2026
info_outline Critical cPanel zero-day, Swiss Black Axe arrests, HHS data center questions 05/01/2026
info_outline Roblox hackers arrested, Microsoft 0-day falls short, Dubai scam takedown 04/30/2026
info_outline Agent payments, Russian phishing, LeRobot RCE flaw 04/29/2026
info_outline PhantomRPC flaw, Checkmarx GitHub dark web data, PyPI package infostealer 04/28/2026
info_outline ADT data breach, Toronto SMS blasting, pre-Stuxnet malware discovery 04/27/2026
info_outline The Department of Know: Vercel breach, a “Contagious Interview,” and ghost breaches 04/24/2026
info_outline Rituals cosmetics breach, FBI iOS flaw fixed, Teams Helpdesk impersonation 04/24/2026
info_outline New OpenAI cyber product, unauthorized Mythos access, insurers to cap LLMjacking payouts 04/23/2026
info_outline CISA lacks Mythos, Lovable's leak by design, YouTube's deepfake detection 04/22/2026
info_outline Vercel breach, ZionSiphon targets water infrastructure, Bluesky DDoS 04/21/2026
info_outline London hospital ransomware legacy, PowerOFF takedown, Microsoft RedSun zero-day 04/20/2026
info_outline The Department of Know: Mythos Mayhem, critical infrastructure targeted, NVD changes 04/17/2026
info_outline Cisco Webex warning, Splunk’s Enterprise fix, Git spoof tricks Claude 04/17/2026
info_outline OpenAI's GPT-5.4-Cyber, McGraw Hill blames Salesforce for breach, signed adware disables antivirus 04/16/2026
info_outline Ransomware drama, faked Ledger app, Treasury wants Mythos 04/15/2026
info_outline Claude Mythos Preview’s capabilities, Anodot breached companies face extortion, wolfSSL flaw enables forged certificates 04/14/2026
info_outline The Department of Know is Moving to Fridays 04/13/2026
info_outline Adobe patches zero-day, Marimo flaw exploited, Venice flood threat 04/13/2026
info_outline Android API exposure, Acrobat Reader zero-day, Bitcoin Depot cyberattack 04/10/2026
info_outline ChipSoft popped, APT28 updates, CIA cyber espionage elevation 04/09/2026
info_outline Anthropic's Project Glasswing, CISA funding in doubt, routers hijacked for passwords 04/08/2026
info_outline Drift blames exploit on North Korea, GitHub attacks target South Korea, Die Linke breach threatens data leak 04/07/2026
info_outline Department of Know: Axios malware, TeamPCP campaign, New Storm infostealer 04/06/2026
info_outline Malicious npm packages, CISA budget cuts, hackers exploit React2Shell 04/06/2026
info_outline Texas hospital breach, CISA orders NetScaler patch, ISO file RAT warning 04/03/2026
info_outline New iOS patches over DarkSword, FBI: surveillance hack is major incident, Cisco code stolen in Trivy-linked breach 04/02/2026
info_outline Axios poisoned, TeamPCP details, Claude Code leaked 04/01/2026
 
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