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

Cohere AI Terrarium Sandbox Flaw Enables Root Code Execution, Container Escape
The Hacker News
Industry News

Cohere AI Terrarium Sandbox Flaw Enables Root Code Execution, Container Escape

CVE-2026-5752 CVSS 9.3 flaw in Terrarium enables root code execution via Pyodide prototype traversal, risking container escape.

The Hacker NewsApr 22, 20263m2
Over 1,300 Microsoft SharePoint servers vulnerable to spoofing attacks
BleepingComputer
Malware & Threats

Over 1,300 Microsoft SharePoint servers vulnerable to spoofing attacks

Over 1,300 Microsoft SharePoint servers exposed online remain unpatched against a spoofing vulnerability that was exploited as a zero-day and is still being abused in ongoing attacks.

BleepingComputerApr 22, 20263m2
Vulnerabilities

ISC Stormcast For Wednesday, April 22nd, 2026 https://isc.sans.edu/podcastdetail/9902, (Wed, Apr 22nd)

SANS ISC
Vulnerabilities

ISC Stormcast For Wednesday, April 22nd, 2026 https://isc.sans.edu/podcastdetail/9902, (Wed, Apr 22nd)

No description available.

SANS ISCApr 22, 20261m2
Vulnerabilities

[Guest Diary] Beyond Cryptojacking: Telegram tdata as a Credential Harvesting Vector, Lessons from a Honeypot Incident, (Wed, Apr 22nd)

SANS ISC
Vulnerabilities

[Guest Diary] Beyond Cryptojacking: Telegram tdata as a Credential Harvesting Vector, Lessons from a Honeypot Incident, (Wed, Apr 22nd)

&#;x26;#;x5b;This is a Guest Diary by L. Carty, an ISC intern as part of the SANS.edu Bachelor&#;x26;#;39;s Degree in Applied Cybersecurity (BACS) program &#;x26;#;x5b;1].]

SANS ISCApr 22, 20261m2
French govt agency confirms breach as hacker offers to sell data
BleepingComputer
Malware & Threats

French govt agency confirms breach as hacker offers to sell data

France Titres, the government agency in France for issuing and managince administrative documents has disclosed a data breach after a threat actor claimed the attack and stealing citizen data.

BleepingComputerApr 21, 20263m2
Industry News

Ransomware Negotiator Pleads Guilty to BlackCat Scheme

Dark Reading
Industry News

Ransomware Negotiator Pleads Guilty to BlackCat Scheme

A cautionary tale illustrates why the person negotiating should never be involved with any part of the ransom payment process, experts noted.

Dark ReadingApr 21, 20261m2
Industry News

Exploits Turn Windows Defender into Attacker Tool

Dark Reading
Industry News

Exploits Turn Windows Defender into Attacker Tool

Three proof-of-concept exploits are being used in active attacks against Microsoft's built-in security platform; two are unpatched.

Dark ReadingApr 21, 20261m1
New Lotus data wiper used against Venezuelan energy, utility firms
BleepingComputer
Malware & Threats

New Lotus data wiper used against Venezuelan energy, utility firms

A previously undocumented data-wiping malware dubbed Lotus was used last year in targeted attacks against energy and utilities organizations in Venezuela.

BleepingComputerApr 21, 20263m2
SystemBC C2 Server Reveals 1,570+ Victims in The Gentlemen Ransomware Operation
The Hacker News
Industry News

SystemBC C2 Server Reveals 1,570+ Victims in The Gentlemen Ransomware Operation

SystemBC C2 exposed 1,570+ victims tied to The Gentlemen since July 2025, revealing expanding ransomware scale.

The Hacker NewsApr 21, 20266m1
22 BRIDGE:BREAK Flaws Expose 20,000 Lantronix and Silex Serial-to-IP Converters
The Hacker News
Industry News

22 BRIDGE:BREAK Flaws Expose 20,000 Lantronix and Silex Serial-to-IP Converters

22 BRIDGE:BREAK flaws in Lantronix and Silex converters expose nearly 20,000 devices online, enabling takeover and data tampering.

The Hacker NewsApr 21, 20263m1
Industry News

Surge in Bomgar RMM Exploitation Demonstrates Supply Chain Risk

Dark Reading
Industry News

Surge in Bomgar RMM Exploitation Demonstrates Supply Chain Risk

The critical remote code execution flaw (CVE-2026-1731) in the remote monitoring and management tool can be exploited to spread ransomware and compromise supply chains.

Dark ReadingApr 21, 20261m2
‘Scattered Spider’ Member ‘Tylerb’ Pleads Guilty
Krebs on Security
Data Breaches

‘Scattered Spider’ Member ‘Tylerb’ Pleads Guilty

A 24-year-old British national and senior member of the cybercrime group "Scattered Spider" has pleaded guilty to wire fraud conspiracy and aggravated identity theft. Tyler Robert Buchanan admitted his role in a series of text-message phishing attacks in the summer…

Krebs on SecurityApr 21, 20265m2