Not sure hiring a US security firm is a safer approach than crowdsourcing using the power of the global community.
After all, Matasano's tptacek obviously did spend some of his time inspecting and criticizing Telegram this week. However, he overlooked the 100K vulnerability that was later discovered by a Russian guy who considers himself a newbie in cryptography.
The other reason that makes me somewhat reluctant to spend money on hiring Matasano is the recent RSA-gate (and the strange role of tptacek in it).
After all, Matasano's tptacek obviously did spend some of his time inspecting and criticizing Telegram this week. However, he overlooked the 100K vulnerability that was later discovered by a Russian guy who considers himself a newbie in cryptography.
The other reason that makes me somewhat reluctant to spend money on hiring Matasano is the recent RSA-gate (and the strange role of tptacek in it).