Data At Risk!
Reduction in Key Space & Time-to-Break Encryption 

• Advances in attack vectors (e.g. side-channel attacks)

• Advances in computing power

     >Massively parallel

     >Non-universal quantum computers

• Quantum algorithms

    >Shor’s algorithm in asymmetric cryptography

    >Grover’s algorithm in symmetric cryptography

• Poor implementations (e.g. leak information)

• Use of insecure protocols (e.g. WEP, SSL)

• Use of broken/insecure algorithms 

• Quantum-insecure key lengths:
  e.g. AES-128 bit key, RSA-1024, 2048, 4096... bit keys, 3TDEA-168 bit key
  
  

--> Quantum computing will break today's safe algorithms with current key lengths.

See details in NIST publication