Chained Echoes -0100c11012c68000--v131072--us-....-transfer Large Files Securely Free ⟶ 【PROVEN】

Potential plot points: A user trying to send sensitive files but finds out the system isn't as secure as it seems. Maybe a character who works for a company that uses "Chained Echoes" to communicate, but then discovers it's a front for something else. Alternatively, a hacker or activist using the service to expose corruption, facing opposition while trying to protect the data they're transferring.