Cybersecurity controls are not foolproof, even when they’re blocking known attacks. A recent report from Picus Labs highlights a disturbing trend: as attack tools become more sophisticated, traditional security measures are struggling to keep up.
The Blue Report 2026, which measured the effectiveness of enterprise prevention and detection in real-world environments, revealed some shocking numbers. Despite a slight improvement in overall prevention rates – up from 62% to 69% – the report exposed a darker truth: known attacks are being blocked, but quieter variants of the same techniques are slipping through.
This isn’t due to any failure on the part of security vendors or technology; rather, it’s a reflection of how attackers are adapting. Traditional prevention measures focus on identifying and blocking known bad actors and malware samples. But as attackers get more creative, they’re finding ways to bypass these controls by using variants of established techniques that aren’t yet recognized.
To illustrate this point, Picus Labs tested the Mimikatz tool in three different scenarios: dumping credentials from LSASS process memory (the “loud” method), pulling RDP credentials from other memory locations (a quieter variant), and reading LSA Secrets from the local registry (an even more stealthy approach). The results were striking: while 94% of attempts to dump credentials using the classic method were blocked, only 17% of quieter variants were caught, and a mere 3% of the most sophisticated approach.
This disparity is due in part to how security controls are designed. Traditional signature-based prevention looks for specific patterns or “tells” that indicate an attack, but these can be easily changed by attackers. In contrast, behavioral detection seeks to identify malicious activity regardless of its method – a more comprehensive and effective approach.
The Blue Report 2026 is a wake-up call for organizations relying solely on traditional security measures. It’s time to rethink our approach and prioritize behavioral testing and analysis. By challenging the status quo and investing in more advanced security tools, we can stay one step ahead of attackers and protect ourselves against even the most sophisticated threats.
So what can you do? Start by recognizing that your current controls are only a snapshot of their effectiveness – they may be blocking known attacks, but quieter variants could still be slipping through. Challenge your security team to move beyond traditional signature-based prevention and focus on behavioral analysis. And don’t be afraid to test the behavior underneath – not just the procedure or pattern recognition.
By taking these steps, you can strengthen your defenses and stay ahead of emerging threats. The Blue Report 2026 may seem like a discouraging read, but it’s also a call to action: let’s revolutionize our approach to cybersecurity and protect ourselves against even the most cunning attackers.
Source: Bleeping Computer — 2026-08-18