Fortinet project manager Bryan Lu discussed the current scenario where anti-malware vendor use different systems to display threat levels. Lu argued that security vendors are already using sophisticated computation and logic to extract data from virus detections and spam e-mails but bemoaned the fact that only a part of this data is exposed to end users. Lu proposed a detailed system to compute a virus threat level, a spam threat level and a vulnerability threat level to come up with a standard way of figuring out severe, high, escalated or normal threat levels.
Source: https://threatpost.com/av-researcher-calls-standard-threat-level-displays-092509/72211/