Early Warning Signals: When Attacker Behavior Precedes New Vulnerabilities
Summary: GreyNoise research describes a recurring pattern in which spikes in malicious activity often precede the disclosure of new CVEs, particularly in enterprise edge technologies such as VPNs and firewalls. In 80 percent of the cases studied, attackers hit specific technologies weeks before a new vulnerability affecting them was published.
What you should know: If attackers are already probing your VPNs and firewalls weeks before the CVE exists, the disclosure date is not the start of your exposure window - it is the point at which you finally learn about activity that has been underway for weeks.
Read the original at GreyNoise Blog ↗
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