Only amateurs attack machines; professionals target people.
Surveillance is the business model of the Internet.
Technical problems can be remediated. A dishonest corporate culture is much harder to fix.
There are two kinds of cryptography in this world: cryptography that will stop your kid sister from reading your files, and cryptography that will stop major governments from reading your files.
Security is a process, not a product.
Anyone, from the most clueless amateur to the best cryptographer, can create an algorithm that he himself can't break.