That's happening thanks to Section 702 of the Foreign Intelligence Survillence Act, the very "backdoor" discussed here.
That is a typically Russian feature, by banning, they will just awake our interest to find a backdoor.
The defenders of backdoor searches argue that the same rule should apply in the section 702 situation.
Whether this was a gift or a loan or a backdoor investment in the new venture is unknown.
She could run and hide in one of the classrooms with the rest of the children and teachers or even make it out the backdoor.
The last Royalist defender of safe measures had vanished through the backdoor.
It was as though he had walked round the house of literature, and peeped in at the backdoor.
Early next morning, he tied up his clothes in his handkerchief, crept downstairs noiselessly and let himself out by the backdoor.
Instantly the backdoor assumed the chief position of interest.
When within a short distance of the old house a backdoor suddenly opened and fule-Tammy came out carrying a peat-keschie.
also back-door, "devious, shady, illegal," 1640s. The notion is of business done out of public view. The noun back door in the literal sense is from 1520s, from back (adj.) + door. The association with sodomy is at least from 19c.; cf. also back-door man "a married woman's lover," black slang, early 20c.