NSA/encryption

Was tempted to put this on the other site as there's more likely tech minded people around.

What's the deal with the NSA cracking "most" encrypted services and also adding backdoors.

Is that something that tech companies can counter (assuming they're not on the take in all cases), or has the basic technology been rendered ineffective now?

As for back doors the weakest link in any network is just that, the weakest link.
Even US military networks are thought to have Chinese manufactured routers and who knows what back doors China put in to the firmware.

Its unlikely that NSA decryption could be defeated since there are crucial NSA interception points in the internet even if one recipient has only White-Knight equipment.

Its never been a secret that the NSA gets early copies of new chips and runs various Boewulfs on de-encrypting messages.

A good many sites have back doors in Unix or in their routers or somewhere. Some of those back doors have been around for decades.

There is even a search engine that solely searches for internet devices such as baby monitors and computer cameras or industrial processes that are vulnerable.