Cybersecurity Headlines — April 22, 2026
- SEALSQ Advances Post-Quantum Cryptography (PQC) in Silicon to Counter AI-Driven Threats Following Anthropic’s Mythos Breakthrough — GlobeNewswire
- CISA flags new SD-WAN flaw as actively exploited in attacks — BleepingComputer
- Actively exploited Apache ActiveMQ flaw impacts 6,400 servers — BleepingComputer
- U.S. CISA adds Cisco Catalyst, Kentico Xperience, PaperCut NG/MF, Synacor ZCS, Quest KACE SMA, and JetBrains TeamCity flaws to its Known Exploited Vulnerabilities catalog — Securityaffairs.com
- Inside the ‘fake police raid’ that forced a $1M Bitcoin transfer — Cointelegraph
- CISA Adds 8 Exploited Flaws to KEV, Sets April-May 2026 Federal Deadlines — Internet
- Ripple wants the XRP Ledger to be quantum-proof by 2028. Here is its plan — CoinDesk
- Cybersecurity jobs available right now: April 21, 2026 — Help Net Security
- ODIN EMF Faraday Bag Claims Evaluated: Advanced Full Spectrum Signal-Blocking Cage for Phones, Tablets & Key Fobs — GlobeNewswire
- Vulnerability Summary for the Week of April 13, 2026 — Cisa.gov
From the Trenches
As a cybersecurity practitioner, I’m seeing two stories that are making me sit up and take notice - SEALSQ’s advancements in post-quantum cryptography (PQC) to counter AI-driven threats, and CISA flagging new SD-WAN flaws as actively exploited in attacks.
SEALSQ’s breakthrough is a game-changer for organizations looking to protect themselves against the growing threat of quantum computers. With the rise of AI-powered attacks, it’s becoming increasingly important to have robust PQC measures in place. SEALSQ’s silicon implementation of post-quantum cryptography is a significant step forward, and I’m excited to see how this technology will be adopted by organizations in the coming months.
On the other hand, CISA’s warning about actively exploited SD-WAN flaws is a stark reminder of the importance of staying on top of vulnerability patching. As we’ve seen time and again, exploiting vulnerabilities in widely used technologies can have devastating consequences. The fact that these flaws are being actively exploited in attacks means that organizations need to act quickly to patch them before they become even more vulnerable.
🔧 Patch Priority: Cisco Catalyst is now on the CISA Known Exploited Vulnerabilities catalog, with a federal deadline of April 2026 - get it patched ASAP.
Compiled daily. Stay patched, stay vigilant.