Abstract: The disclosed computer-implemented method for encrypting files may include (i) detecting an event within a network that triggers an encryption of a file on the network, (ii) performing, in response to detecting the event, both encrypting the file to a file encryption key and encrypting the file encryption key to a public key of a source of the file, (iii) receiving, from a client, a file access request that includes the encrypted file encryption key, and (iv) transmitting, in response to determining that the client is authorized to access the file, a re-encrypted file encryption key to the client to enable the client to access the file. Various other methods, systems, and computer-readable media are also disclosed.