2021-threat-report Advanced Threat predictions for 2021 https://securelist.com/apt-predictions-for-2021/99387/ SentinelOne https://www.sentinelone.com/blog/sentinelones-cybersecurity-predictions-2021-what-can-we-expect-after-a-year-like-this/ 2020-2021-cyber-espionage-report.pdf :verizon