Cybersecurity expert Andrea E. Davis emphasizes the increasing vulnerability of critical infrastructure to cyber threats, highlighting instances such as the 2003 US and Canada power outage and the 2021 Colonial Pipeline ransomware attack. Davis supports the Presidential Policy Directive 21 and National Security Memorandum for addressing such threats. She suggests a comprehensive approach involving public-private partnerships, investment in emergency preparedness, increased information sharing, and continued investment in technology and innovation as strategies against cyber-attacks on critical infrastructure.

M&S still rebuilding after April cyber incident – Digital Watch Observatory
Summarize this content to a maximum of 60 words: M&S still rebuilding after April cyber incident Digital Watch Observatory