#cross-platform-pivot
6 writeups ·all writeups
I love cats — Athena Trace 2026 Writeup
The obvious contact address is a decoy. The real one is on a platform the business posts to more often than it updates its own site — and then a trailing newline waits to eat your submission.
A Taste of Influence, Part 2 — Name to Registrant Record
Part 2 of the A Taste of Influence OSINT challenge: name to city to business project to a pre-GDPR WHOIS record, and why the phone number is the part that matters.
A Taste of Influence, Part 4 — Finding the Strava Account
The final part of the A Taste of Influence OSINT challenge: finding a subject's Strava account through public athlete search, and disambiguating on the profile photo.
Holehe & The Secret Email — Dating a ProtonMail Account via Its PGP Key
ProtonMail never publishes account creation dates. It publishes a PGP key for every address, and that key carries a timestamp — one HKP query away.
Nothing To See Here — PDF → Mastodon → SSTV → QR
A passive-OSINT challenge that chains white-on-white PDF text, an emoji substitution cipher, a Morse-tagged Robot 36 SSTV transmission and a QR code into a physical meeting location.
A Concert Seat from a LinkedIn Lead
One LinkedIn profile, a cross-platform pivot to a travel vlog, and a single blurry frame of a concert ticket. The seat was on the ticket — the hard part was reading one character correctly.