Facebook's Onavo VPN was used to track users on competitors' apps, including Snapchat, as part of Project Ghostbusters.

The tracking was intended to give Facebook a commercial advantage by spying on competitors' traffic.

The scheme expanded to target Amazon and YouTube, raising potential wiretapping law violations.

Court filings suggest Facebook's data exploitation likely breached the Wiretap Act by intercepting communications without consent.

Onavo service was discontinued in 2019 after a TechCrunch expose.

Mark Zuckerberg personally requested analytics on Snapchat's encrypted data, leading to the use of 'SSL man-in-the-middle' decryption methods.