The following are links to the first 5 days of the 100 Days of Cyber Challenge that I posted on LinkedIn.

Day 1 of 100, 18 November 2025
BSides Pyongyang 2025, Starting over with the Challenge, DPRK Cyberattacks and Tactics

Day 2 of 100, 19 November 2025
FCC Proposing Rollback of Salt-Typhoon-Inspired Rules

Day 3 of 100, 20 November 2025
FCC Rolls Back Security Rules Enacted in Response to Salt Typhoon

Day 4 of 100, 21 November 2025
Deprecated Asus Routers Targeted in Chinese Attacks

Day 5 of 100, 22 November 2025
Researchers Use Poetic Prompts to Compromise LLM Security