10 Lessons Learned from the Top Cyber Threats of 2021

2021 was a busy year for the cyber security community. Emerging threats posed many challenges to security professionals and created many opportunities for threat actors. Picus has curated a list of the top five threats observed in 2021, detailing ten  lessons defenders can learn from them. 

Microsoft Exchange Server Vulnerabilities

In January 2021, Volexity detected a large amount of egress data traffic on its customers’ Microsoft Exchange Servers [1]. Later, it discovered that several vulnerabilities had been exploited for unauthorized …

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