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Guides, playbooks, and learning resources to level up your cybersecurity knowledge and keep your organization secure.

Microsoft links Classic Outlook issue to email delivery problems
BleepingComputer
Malware & Threats

Microsoft links Classic Outlook issue to email delivery problems

Microsoft is investigating a known issue that prevents some Classic Outlook users from sending emails via Outlook.com.

BleepingComputerApr 2, 20262m3
Over 14,000 F5 BIG-IP APM instances still exposed to RCE attacks
BleepingComputer
Malware & Threats

Over 14,000 F5 BIG-IP APM instances still exposed to RCE attacks

Internet security watchdog Shadowserver has found over 14,000 BIG-IP APM instances exposed online amid ongoing attacks exploiting a critical-severity remote code execution (RCE) vulnerability.

BleepingComputerApr 2, 20263m3
Variance Raises $21.5M for Compliance Investigation Platform Powered by AI Agents
SecurityWeek
Industry News

Variance Raises $21.5M for Compliance Investigation Platform Powered by AI Agents

Variance has raised a total of $26 million in funding and the latest investment will fuel platform growth.

SecurityWeekApr 2, 20262m1
Apple Expands iOS 18.7.7 Update to More Devices to Block DarkSword Exploit
The Hacker News
Industry News

Apple Expands iOS 18.7.7 Update to More Devices to Block DarkSword Exploit

Apple expanded iOS 18.7.7 on April 1, 2026 after DarkSword disclosure, enabling auto security updates across more devices.

The Hacker NewsApr 2, 20264m1
Linx Security Raises $50 Million for Identity Security and Governance
SecurityWeek
Industry News

Linx Security Raises $50 Million for Identity Security and Governance

The company will accelerate product development, scale go-to-market efforts, and expand its global footprint.

SecurityWeekApr 2, 20262m1
Vulnerabilities

ISC Stormcast For Thursday, April 2nd, 2026 https://isc.sans.edu/podcastdetail/9876, (Thu, Apr 2nd)

SANS ISC
Vulnerabilities

ISC Stormcast For Thursday, April 2nd, 2026 https://isc.sans.edu/podcastdetail/9876, (Thu, Apr 2nd)

No description available.

SANS ISCApr 2, 20261m2
Smashing Security podcast #461: This man hid $400 million in a fishing rod. Then it vanished
Graham Cluley
Industry News

Smashing Security podcast #461: This man hid $400 million in a fishing rod. Then it vanished

A cannabis-growing, beekeeping, gyrocopter-flying Irishman invested his drug money in Bitcoin back in 2011 – and now sits on a fortune worth $400 million. There’…

Graham CluleyApr 1, 20263m1
New CrystalRAT malware adds RAT, stealer and prankware features
BleepingComputer
Malware & Threats

New CrystalRAT malware adds RAT, stealer and prankware features

A new malware-as-a-service called CrystalRAT is being promoted on Telegram, offering remote access, data theft, keylogging, and clipboard hijacking capabilities.

BleepingComputerApr 1, 20263m3
Industry News

Ransomware Will Hit Hospitals. Rehearsals Are Key to Defense

Dark Reading
Industry News

Ransomware Will Hit Hospitals. Rehearsals Are Key to Defense

A chief medical information officer provided a peek into what hospitals face when they inevitably suffer a ransomware attack—whether it leads to short or long-term outages.

Dark ReadingApr 1, 20261m1
Apple expands iOS 18 updates to more iPhones to block DarkSword attacks
BleepingComputer
Malware & Threats

Apple expands iOS 18 updates to more iPhones to block DarkSword attacks

Apple has now made it possible for more iPhones still running iOS 18 to receive security updates that protect against the actively exploited DarkSword exploit kit.

BleepingComputerApr 1, 20263m3
Hackers exploit TrueConf zero-day to push malicious software updates
BleepingComputer
Malware & Threats

Hackers exploit TrueConf zero-day to push malicious software updates

Hackers have targeted TrueConf conference servers in attacks that exploit a zero-day vulnerability, allowing them to execute arbitrary files on all connected endpoints.

BleepingComputerApr 1, 20263m3
New EvilTokens service fuels Microsoft device code phishing attacks
BleepingComputer
Malware & Threats

New EvilTokens service fuels Microsoft device code phishing attacks

A new malicious kit called EvilTokens integrates device code phishing capabilities, allowing attackers to hijack Microsoft accounts and provide advanced features for business email compromise attacks.

BleepingComputerApr 1, 20263m3