ThreatFire is a free security tool that, unlike most antivirus programs, also protects your computer against unknown threats - viruses, spyware, adware, Trojan horses, keyloggers, etc. The program has advanced ActiveDefense technology, which in combination with the mechanism of behavioral analysis effectively eliminates any suspicious behavior, often undetected by popular antivirus software, and which may result in theft of confidential information. ThreatFire has an automatic update mechanism and allows you to scan your computer's content in two modes, taking into account only the key areas of the system (Intelli-Scan) or the entire computer's content (Full Scan) during operation.

The advantage of the programme is the low demand for system resources.