Many terrorist attacks are hard to detect as they are accomplished by hiding explosive devices in ordinary-looking objects. Attack detection is absolutely critical for providing early warning and prevention of terrorist attacks in public places. In such cases, AI and ML systems can facilitate attack detection that can help security personnel identify abnormal behaviors like object fetching, deposit, or exchange in public places — behaviors that might indicate potential attacks. This attack detection service can help improve security levels, reduce the risk of attacks, and enhance public safety.