Web: https://securityboulevard.com/2022/01/10-lessons-learned-from-the-top-cyber-threats-of-2021/

Jan. 10, 2022, 7:58 a.m. | Hüseyin Can YÜCEEL

Security Boulevard securityboulevard.com

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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