He is a computer security expert, well-versed in the process of decryption.

It took him a while to decode the message.

He is a specialist in that field.

Our company is planning to computerize all processes.

We decided to computerize all our operations.

He has mastery of the Japanese language.

He is well versed in Japanese.

This process takes time.

We need to enhance the security of this system.

We need to strengthen the security of our company.