If the source code isn't available for audit by 3rd parties (or yourself), and you can't build it from source, then it was never really "secure" anyway. What lawmakers do or don't say is just noise.
Platforms that rely on trust (in this case, trusting that FB isn't doing bad things) provide very weak guarantees about privacy/security. They could easily include a keylogger in WhatsApp and bypass the e2e encryption, for example, and us regular folk have no way of knowing.
Platforms that rely on trust (in this case, trusting that FB isn't doing bad things) provide very weak guarantees about privacy/security. They could easily include a keylogger in WhatsApp and bypass the e2e encryption, for example, and us regular folk have no way of knowing.