US Patent 10409986 Ransomware detection in a continuous data protection environment

A computer program product, system, and method for generating coded fragments comprises intercepting, at a splitter, a write request from a host to storage, the write request comprising write data; sending the write request to a data protection appliance (DPA); calculating a probability of ransomware within the host; if the probability of ransomware is less than or equal to a first threshold, sending an acknowledgement (ACK) to the splitter; if the probability of ransomware is greater than a first threshold value and less than or equal to a second threshold value, creating a bookmark and sending an ACK to the splitter; and if the probability of ransomware is greater than the second threshold value, sending a delayed ACK to the splitter.