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Today's Cybersecurity Pulse

CISA adds critical Android and Linux flaws to KEV catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) listed two high‑severity vulnerabilities in its Known Exploited Vulnerabilities catalog: Android CVE‑2025‑48595, an integer overflow that enables privilege escalation on Android 14‑16 without user interaction, and Linux CVE‑2022‑0492. Google released patches for the Android bug in June 2026.

AI Agent Rush Ignites Security Gaps and Data Risks
SocialApr 22, 2026

AI Agent Rush Ignites Security Gaps and Data Risks

Rapid adoption of AI agents without proper safeguards is leading to exposed systems, data risks, and increased opportunities for attackers to exploit access controls. https://t.co/HE5t3QmHqC

By TechRadar
Unauthorized Group Has Gained Access to Anthropic’s Exclusive Cyber Tool Mythos, Report Claims
NewsApr 21, 2026

Unauthorized Group Has Gained Access to Anthropic’s Exclusive Cyber Tool Mythos, Report Claims

Anthropic’s newly announced AI cybersecurity tool, Mythos, was reportedly accessed by an unauthorized group through a third‑party vendor. The breach was uncovered after members of a Discord channel posted screenshots and a live demo of the tool. Anthropic says no...

By TechCrunch (Main)
Mozilla Fixes 271 Firefox Bugs Using Anthropic Mythos
SocialApr 21, 2026

Mozilla Fixes 271 Firefox Bugs Using Anthropic Mythos

Mozilla scanned the Firefox codebase with Anthropic Mythos has fixed 271 vulnerabilities identified during this initial evaluation. https://blog.mozilla.org/en/privacy-security/ai-security-zero-day-vulnerabilities/

By Sung Kim
Enterprises Are Ramping up Preparations for a Post-Quantum World – Experts Worry It Could Be Too Late for Many
NewsApr 21, 2026

Enterprises Are Ramping up Preparations for a Post-Quantum World – Experts Worry It Could Be Too Late for Many

Post‑quantum computing adoption is accelerating, with Juniper Research projecting users to rise from 35,000 this year to over 100 million by 2035, yet only 27% of firms plan to implement quantum‑secure safeguards in time. Google now predicts quantum computers capable of...

By ITPro
UK Intelligence: 100 Nations Have Spyware that Can Hack Britain
NewsApr 21, 2026

UK Intelligence: 100 Nations Have Spyware that Can Hack Britain

The UK National Cyber Security Centre (NCSC) warns that roughly 100 countries have bought cyber‑intrusion software capable of targeting Britain’s infrastructure, businesses, and private networks. The commercial spyware market, exemplified by tools like Pegasus and Predator, has broadened its focus...

By Politico Europe
Guilt Admitted by British Hacker in $8M Crypto Theft Scheme
NewsApr 21, 2026

Guilt Admitted by British Hacker in $8M Crypto Theft Scheme

British hacker Tyler Buchanan pleaded guilty to a scheme that stole at least $8 million in cryptocurrency from U.S. victims, targeting roughly 12 companies across virtual‑currency, technology, telecom and entertainment sectors between September 2021 and April 2023. Prosecutors say he and co‑conspirators used...

By SC Media
Unpatched AI Flaw Poses Risk to Banking Sector
NewsApr 21, 2026

Unpatched AI Flaw Poses Risk to Banking Sector

Security firm OX Security uncovered a critical flaw in Anthropic's Model Context Protocol (MCP) that lets AI agents execute arbitrary host‑machine commands via the default "stdio" setup. Anthropic has declined to patch the underlying code, placing the onus on developers—particularly...

By American Banker
Over 400K Records Allegedly Stolen From Major Dutch Webshop Bol, Data Leaked
NewsApr 21, 2026

Over 400K Records Allegedly Stolen From Major Dutch Webshop Bol, Data Leaked

A hacker using the alias “Jeffrey Epstein” claims to have stolen data on over 400,000 Belgian customers of Dutch e‑commerce giant Bol. The alleged dataset includes names, birthdates, contact details, shipping information and order history, though passwords and bank data are...

By SC Media
Crypto Stealing Wallet Apps Proliferate in Apple App Store
NewsApr 21, 2026

Crypto Stealing Wallet Apps Proliferate in Apple App Store

A wave of 26 counterfeit crypto‑wallet apps masquerading as Coinbase, MetaMask, OneKey and Trust Wallet surfaced in the Apple App Store. The apps redirected users to phishing pages that installed malicious provisioning profiles, enabling the theft of mnemonic seed phrases....

By SC Media
Microsoft Teams, Quick Assist Weaponized in Helpdesk Spoofing Intrusions
NewsApr 21, 2026

Microsoft Teams, Quick Assist Weaponized in Helpdesk Spoofing Intrusions

Threat actors are weaponizing Microsoft Teams and Quick Assist in a new help‑desk impersonation campaign. Attackers send spoofed Teams messages that convince users to approve a Quick Assist session, granting the intruder full control of the device within minutes. Once...

By SC Media
Novel Malware Campaign Bundles Gh0st RAT, CloverPlus Adware
NewsApr 21, 2026

Novel Malware Campaign Bundles Gh0st RAT, CloverPlus Adware

A new malware campaign combines the Gh0st RAT remote‑access trojan with CloverPlus adware to monetize infected PCs while maintaining long‑term control. Attackers use an obfuscated loader that first installs CloverPlus to display ads and generate click revenue, then deploys a...

By SC Media
Whistleblower Says CIA Hid 2020 Election Threats To Help Biden
BlogApr 21, 2026

Whistleblower Says CIA Hid 2020 Election Threats To Help Biden

A declassified National Intelligence Council memo from January 2020 warned that foreign adversaries could exploit voter registration databases and other election infrastructure. Former cyber official Christopher Porter alleges the CIA suppressed the memo after President Trump ordered its public release,...

By ZeroHedge – Markets
Ransomware Negotiator Pleads Guilty to BlackCat Scheme
NewsApr 21, 2026

Ransomware Negotiator Pleads Guilty to BlackCat Scheme

Angelo Martino, a former ransomware negotiator at a US incident‑response firm, pleaded guilty to conspiring with the BlackCat/ALPHV ransomware gang to steal confidential negotiation data and facilitate extortion attacks in 2023. Together with two other cybersecurity professionals, he helped deploy...

By Dark Reading
$293M KelpDAO Crypto Heist Exposes Cross-Chain Weaknesses in DeFi
NewsApr 21, 2026

$293M KelpDAO Crypto Heist Exposes Cross-Chain Weaknesses in DeFi

A coordinated attack stole roughly $293 million worth of rsETH from KelpDAO, a liquid restaking protocol on Ethereum. The thieves compromised RPC nodes and flooded the network with DDoS traffic, corrupting LayerZero’s cross‑chain verification and allowing fraudulent transfers. The stolen tokens...

By eSecurity Planet
The Missing Layer in Federal Data Protection
NewsApr 21, 2026

The Missing Layer in Federal Data Protection

Federal agencies have long secured data at rest and in transit, but data in use remains vulnerable. Confidential computing, built on trusted execution environments (TEEs), encrypts memory and isolates workloads, offering a third layer of protection. The technology is already...

By Federal News Network
How Zero Networks Is Closing the Network Enforcement Gap for AI Agents
NewsApr 21, 2026

How Zero Networks Is Closing the Network Enforcement Gap for AI Agents

Zero Networks, founded in 2019, offers an agentless, automated microsegmentation platform that eliminates manual policy creation. The solution discovers assets via directories and third‑party tools, then enforces label‑based policies using native firewalls and switch ACLs. Its new AI Segmentation feature...

By Network World
Thousands of Apache ActiveMQ Instances Still Unpatched, Weeks After an Actively Exploited Hole Discovered
NewsApr 21, 2026

Thousands of Apache ActiveMQ Instances Still Unpatched, Weeks After an Actively Exploited Hole Discovered

Researchers at Horizon3.ai used Anthropic's Claude AI to uncover a remote code execution flaw (CVE‑2026‑34197) in Apache ActiveMQ within ten minutes. The vulnerability affects versions before 5.19.4 and 6.0‑6.2.2, exposing nearly 6,500 internet‑facing instances two weeks after disclosure. CISA has...

By CSO Online
Murder, She Wrote: Ex-FBI Chief Wants some Ransomware Crims Charged with Homicide
NewsApr 21, 2026

Murder, She Wrote: Ex-FBI Chief Wants some Ransomware Crims Charged with Homicide

Former FBI cyber‑division deputy chief Cynthia Kaiser urged the Justice Department to treat ransomware attacks on hospitals as felony murder, citing at least 47 deaths between 2016 and 2021 and likely hundreds today. She called on State, Justice and Treasury...

By The Register
American College of Radiology Offers Cybersecurity Resources
NewsApr 21, 2026

American College of Radiology Offers Cybersecurity Resources

The American College of Radiology (ACR) has unveiled a suite of cybersecurity resources, including a joint white paper with the Society for Imaging Informatics in Medicine (SIIM) that replaces its prior practice parameter, and an online Cybersecurity Hub that aggregates...

By Radiology Business
NIST Scales Back CVSS Scoring as CVE Submissions Surge 263% Since 2020
NewsApr 21, 2026

NIST Scales Back CVSS Scoring as CVE Submissions Surge 263% Since 2020

The National Institute of Standards and Technology announced it will scale back its Common Vulnerability Scoring System (CVSS) enrichment, citing a 263% jump in CVE submissions from 2020 to 2025. The change forces security teams to rely more on internal...

By Pulse
UWB Chips Stop Key‑fob Spoofing, Secure Cars
SocialApr 21, 2026

UWB Chips Stop Key‑fob Spoofing, Secure Cars

Car thieves don't just pick locks to break in. They've also found ways to spoof your key fob's "unlock" signal. No glass broken, no button pressed. But new UWB car security chips fight back with new tech that's tougher to...

By IEEE Spectrum Threads
XRP Ledger to Be Quantum-Proof Years Before Bitcoin
BlogApr 21, 2026

XRP Ledger to Be Quantum-Proof Years Before Bitcoin

Ripple announced a hard deadline to make the XRP Ledger quantum‑proof by 2028, positioning it years ahead of the industry’s estimated "Q‑Day" in the 2030s. The roadmap, detailed by senior director Ayo Akinyele, outlines cryptographic upgrades that will protect the...

By Crusaders Newsletter
HHS Watchdog Advises CIOs to Secure Data Before AI Implementation
NewsApr 21, 2026

HHS Watchdog Advises CIOs to Secure Data Before AI Implementation

The HHS Office of the Inspector General warned federal CIOs that AI projects must be preceded by robust data‑security controls. Agencies are urged to adopt operational AI governance, drawing on NIST guidance, and to shift from static policies to real‑time...

By GovernmentCIO Media & Research
Why Microsoft Is Betting on Temporary Identities to Stop Autonomous Agents From Going Rogue
NewsApr 21, 2026

Why Microsoft Is Betting on Temporary Identities to Stop Autonomous Agents From Going Rogue

Microsoft is introducing temporary, scoped identities for AI agents running on Azure Kubernetes Service, ensuring agents receive only the permissions needed for a specific task before automatic revocation. At KubeCon Europe 2026, the company demoed an agent that diagnosed and...

By The New Stack
Hackers Reconstructed a Wrecked Car’s Every Move Using a Single Computer Module
NewsApr 21, 2026

Hackers Reconstructed a Wrecked Car’s Every Move Using a Single Computer Module

White‑hat researchers extracted a telematics module from a wrecked BYD Seal and, because the memory was unencrypted, reconstructed the car’s complete GPS history from factory departure in China to its final crash in Poland. Using a simple USB flash tool...

By The Drive
New Lotus Data Wiper Used Against Venezuelan Energy, Utility Firms
NewsApr 21, 2026

New Lotus Data Wiper Used Against Venezuelan Energy, Utility Firms

Kaspersky has identified a previously unknown data‑wiping malware called Lotus that was deployed in late 2025 against Venezuelan energy and utility firms, including the state‑owned oil giant PDVSA. The attack begins with two batch scripts that disable Windows services, alter...

By BleepingComputer
Mozilla Used Anthropic’s Mythos to Find and Fix 151 Bugs in Firefox
NewsApr 21, 2026

Mozilla Used Anthropic’s Mythos to Find and Fix 151 Bugs in Firefox

Mozilla announced that its Firefox 150 release incorporates fixes for 151 bugs and patches 271 vulnerabilities discovered with early access to Anthropic’s Mythos Preview AI model. The collaboration allowed the Firefox team to automate a broader search of the codebase, uncovering...

By WIRED
AES-128 Will Survive Cryptographically Relevant Quantum Computers
BlogApr 21, 2026

AES-128 Will Survive Cryptographically Relevant Quantum Computers

Ars Technica reports that AES‑128 encryption remains robust even against cryptographically relevant quantum computers. The analysis shows Grover’s algorithm provides only a quadratic speedup, and its advantage shrinks when the attack is parallelized across multiple quantum processors. Consequently, the effective...

By PC Perspective
130K Users Compromised by StealTok Campaign That Uses Fake TikTok Downloaders
NewsApr 21, 2026

130K Users Compromised by StealTok Campaign That Uses Fake TikTok Downloaders

The StealTok campaign deployed malicious browser extensions masquerading as TikTok video downloaders, compromising more than 130,000 users. Listed in Chrome and Edge stores—some even featured—the extensions remained dormant for six to twelve months before activating data‑stealing functions via attacker‑controlled remote‑config...

By eSecurity Planet
FedRAMP and CMMC Compliance Deadlines Are Looming
NewsApr 21, 2026

FedRAMP and CMMC Compliance Deadlines Are Looming

Federal cloud and defense contractors face two critical compliance milestones before the end of 2026. FedRAMP requires vendors to submit machine‑readable authorization packages by September 30 2026 and to fully adopt NIST SP 800‑53 Revision 5 controls by September 30 2027. The Department of Defense’s CMMC...

By Washington Technology
Microsoft Vulnerabilities Drop, But Critical Flaws Double, Report Warns
NewsApr 21, 2026

Microsoft Vulnerabilities Drop, But Critical Flaws Double, Report Warns

BeyondTrust’s 13th Microsoft Vulnerabilities Report shows a 6% drop in total flaws to 1,273 this year, but critical vulnerabilities have doubled. Office suite bugs tripled, with a ten‑fold rise in critical issues, while Azure and Dynamics 365 saw nine times more...

By HackRead
Nation States Responsible for ‘Nationally Significant’ Cyber Attacks Against UK, Says NCSC Chief
NewsApr 21, 2026

Nation States Responsible for ‘Nationally Significant’ Cyber Attacks Against UK, Says NCSC Chief

The UK’s National Cyber Security Centre (NCSC) warned that hostile nation‑states are now behind the majority of "nationally significant" cyber attacks, averaging four incidents per week. Russia, China and Iran are adapting wartime tactics and leveraging sophisticated AI tools, such...

By ComputerWeekly – DevOps
Open‑source CrabTrap Secures AI Agents with Policy‑Based Proxy
SocialApr 21, 2026

Open‑source CrabTrap Secures AI Agents with Policy‑Based Proxy

Brex just open-sourced CrabTrap. A transparent HTTP proxy that sits between your AI agent and every external API it calls. Okta, but for agents. AI agents in production are getting real credentials now. API keys. OAuth tokens. Database access. Write privileges to...

By Simon Taylor
Tight Controls Needed to Prevent Mythos Abuse
SocialApr 21, 2026

Tight Controls Needed to Prevent Mythos Abuse

A lab leak on their hands here. We don't want adversaries using Mythos to expedite the drop of 0days and other malicious AI-powered attacks. Without tight controls, we're may sadly see Mythos used for evil before we get to see everything...

By Rachel Tobac
What Is the 3-2-1 Backup Rule?
BlogApr 21, 2026

What Is the 3-2-1 Backup Rule?

The 3-2-1 backup rule advises keeping three copies of data, using two different storage media, and storing one copy offsite. Originating from tape‑based eras, the principle remains a cornerstone of data protection. Modern businesses apply it with a mix of...

By Supply Chain Game Changer
AI-Driven Pushpaganda Tricks Users with Malicious Notifications
SocialApr 21, 2026

AI-Driven Pushpaganda Tricks Users with Malicious Notifications

Pushpaganda uses AI-generated content and deceptive tactics to trick users into enabling notifications that deliver scams and evade traditional security defenses. https://t.co/x8sjalWKPR

By TechRadar
AI-Driven Research Will Shrink Attackers' Zero‑Day Arsenal
SocialApr 21, 2026

AI-Driven Research Will Shrink Attackers' Zero‑Day Arsenal

Sunlight seen through the storm. Mozilla security researchers say that after this wave of AI-augmented vuln discovery and exploitation, we'll reach a new equilibrium in which there are *fewer* vulns being used by attackers. “The zero-days are numbered”—https://t.co/MM5SNBJsjD

By Zooko Wilcox-O'Hearn
Aave Partially Unfreezes WETH After Kelp Bridge Exploit
NewsApr 21, 2026

Aave Partially Unfreezes WETH After Kelp Bridge Exploit

Aave announced on April 21 that it has unfrozen wrapped ETH (WETH) supplies on its Ethereum Core V3 market, reversing a 24‑hour freeze triggered by the $290 million Kelp bridge exploit. The protocol kept WETH’s loan‑to‑value ratio at zero, preventing its...

By The Defiant
Shielded Labs Boosts Zcash Security for Users
SocialApr 21, 2026

Shielded Labs Boosts Zcash Security for Users

We at Shielded Labs have been working hard alongside others to urgently defend users and strengthen Zcash's security (https://t.co/GEDJVifGlc) …

By Zooko Wilcox-O'Hearn
Iran Blames US for Coordinated Network Shutdowns
SocialApr 21, 2026

Iran Blames US for Coordinated Network Shutdowns

Iranian media is reporting that networking infrastructure suffered coordinated shutdowns, and blames the US. https://t.co/Gil1Z55HhM

By TechRadar
R26774 - MTS- Information Security & Business Continuity M…
NewsApr 21, 2026

R26774 - MTS- Information Security & Business Continuity M…

Euronext’s MTS SpA is hiring a permanent Information Security & Business Continuity Manager in Milan to lead security and resilience initiatives for its electronic fixed‑income trading platform. The role will implement the Euronext Security Programme and Business Continuity Management Programme, ensuring...

By Euronext
Seiko Hasn't Confirmed Breach; Data Not on Dark Web
SocialApr 21, 2026

Seiko Hasn't Confirmed Breach; Data Not on Dark Web

Seiko has not yet confirmed the incident and the data has not surfaced on the dark web. https://t.co/QqdC9km6on

By TechRadar
Network‑layer Containment Stops Ransomware Before CAD Fails
SocialApr 21, 2026

Network‑layer Containment Stops Ransomware Before CAD Fails

Ransomware doesn’t announce itself. By the time CAD drops, the spread has already started. Containment at the network layer is what keeps dispatch online. @T_Priority Partner https://t.co/qHmY69QqfA

By Glen Gilmore
Auto Dealerships Pressed to Bolster Cybersecurity as Threats Surge
NewsApr 21, 2026

Auto Dealerships Pressed to Bolster Cybersecurity as Threats Surge

Cybersecurity consultants are urging auto dealerships to upgrade defenses as cybercriminals target the industry’s trove of customer and financing data. Sean Patronis of Proton Dealership IT stresses that in‑house teams alone can’t keep pace with sophisticated attacks, and recommends augmenting...

By Pulse
Second Coding Vibe: Security Prediction App Nears Functional
SocialApr 21, 2026

Second Coding Vibe: Security Prediction App Nears Functional

So my 2nd vibe coding experience is about building an app to do security prediction validation. My v0.3 kinda works (but has annoying issues, obviously). (1/n)

By Dr. Anton Chuvakin
DeFi Security: Beyond Audits, Chasing Endless Dependencies
SocialApr 21, 2026

DeFi Security: Beyond Audits, Chasing Endless Dependencies

☠️ "You can have a million audits, but now it's about the dependencies on oracles and bridges and collateral and multisig configurations and operational security practices. It feels like you're just playing whac-a-mole." -- @TuongvyLe12 on all the DeFi hacks https://t.co/PvhRjgnJGF

By Laura Shin
Analysis Confirms Quantum Computers Won’t Undermine 128‑Bit Symmetric Encryption
NewsApr 21, 2026

Analysis Confirms Quantum Computers Won’t Undermine 128‑Bit Symmetric Encryption

A new analysis on the cryptography blog words.filippo.io refutes the widespread belief that quantum computers halve the security of symmetric keys, confirming that AES‑128 and SHA‑256 retain their strength. The piece explains why Grover’s algorithm does not provide a practical...

By Pulse
Mastodon’s Flagship Instance Hit by DDoS Attack, Service Disrupted
NewsApr 21, 2026

Mastodon’s Flagship Instance Hit by DDoS Attack, Service Disrupted

Mastodon reported that its flagship mastodon.social instance was hit by a distributed denial‑of‑service attack at around 7 a.m. ET on Monday, forcing the site offline until a countermeasure was deployed at 9:05 a.m. ET. The incident underscores operational vulnerabilities for open‑source, decentralized...

By Pulse
Microsoft Warns of Cross‑tenant Teams Helpdesk Impersonation Attacks Targeting MFA Tokens
NewsApr 21, 2026

Microsoft Warns of Cross‑tenant Teams Helpdesk Impersonation Attacks Targeting MFA Tokens

Microsoft announced a new human‑operated intrusion playbook that leverages cross‑tenant Microsoft Teams chats masquerading as IT helpdesk messages. The tactic sidesteps traditional email gateways, aims at MFA approval tokens and privileged accounts, and forces security teams to rethink SaaS perimeter...

By Pulse