New generations of computing devices - quantum computers - will be able to crack existing methods of information protection due to fundamentally new circuitry and logic of operation. Within the next few years, many traditional cryptographic algorithms such as key distribution, asymmetric encryption, and electronic signatures will become completely insecure.
Data with a storage lifespan of 5 years or more, as well as their transmission channels, must be protected now — an attacker can save the data files today and decrypt them later when he gains access to a quantum computer.