In the fourth quarter of 2020, we saw a focus on subtlety and evading detection. Malware campaigns were specifically designed to evade firewalls and antivirus registries and used patience to help avoid triggering anomaly detection algorithms. Additionally, malware authors reused existing malware in their attacks and leveraged supply chain vulnerabilities for malware delivery.
This year, we anticipate seeing more of the same. As threat actors refine their tools and techniques, attack campaigns will be more challenging to detect. Additionally, cybercriminals are likely to continue to exploit the vulnerabilities created by extended remote work.