Cyber Threat Actor: yPertron

yPertron, also observed using the alias yPeRtRoN, is a threat actor whose known location is Russia. The actor first appeared in public reporting in mid‑2015 when they were linked to a specific intrusion against an adult‑oriented website. No additional aliases or geographic details have been disclosed in open sources, and the actor’s identity remains tied solely to the single incident that has been documented.

On May 30 2015 yPeRtRoN compromised the domain thaimassagemodel.com, exfiltrating a database containing 4,614 records. The stolen data consisted of usernames paired with cryptographically hashed passwords, a common method for storing credentials that obscures the plaintext values while still allowing verification. The dump was subsequently posted publicly, exposing the account information of the site’s users. This event represents the only publicly reported operation attributed to yPertron, and it provides the sole concrete evidence of the actor’s capabilities and targeting choices at that time.

Beyond this incident, no further information about yPertron’s typical targets, preferred sectors, strategic objectives, malware usage, initial access vectors, tooling, or affiliations with state or criminal groups has been made available in public sources. Consequently, any description of the actor’s broader behavior would rely on speculation rather than verified facts. The profile presented here is therefore limited to the confirmed details of the 2015 credential dump, reflecting the extent of what can be stated with certainty based on the existing evidence.