Final answer:
The statement is true; Continuity247 uses AES-256 bit encryption to encrypt all data at rest, which is a high-security standard that is considered very secure for protecting stored data.
Step-by-step explanation:
The statement that for Continuity247, AES-256 bit encryption is used to encrypt all data at rest only is True. AES-256 is a powerful encryption standard that is widely recognized for its strength and is the gold standard for encryption. It uses a key size of 256 bits, which provides a high level of security and is considered practically unbreakable by current computational means.
When a service specifies that data is encrypted 'at rest', it means that all the data stored on their servers is encrypted. This is an important security measure, protecting the data against unauthorized access such as in the case of a data breach where an attacker gains physical access to the storage medium. However, it does not necessarily imply that the data is encrypted 'in transit', which would mean it is also encrypted as it travels across networks. To fully secure data, it needs to be protected both at rest and in transit.