“These systems are primarily designed to detect known threats using signature-based methods, which are inadequate against today’s sophisticated, ever-evolving attack techniques,” said Young. “Today’s threats often employ sophisticated tactics that require advanced analytics, behavior-based detection, and effective communication across multiple data sources – skills many SIEMs are dying to lack.
In addition, legacy SIEM systems often don’t support automated threat intelligence feeds, which is essential to stay ahead of emerging threats, according to Young. “They also lack the ability to integrate security orchestration, automation, and response tools, which help automate response and simplify incident management.”
Without these modern features, legacy SIEMs often miss important attack signals and have trouble connecting different threat signals, leaving organizations more exposed to complex, multi-stage attacks.
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