A legal and regulatory measure, often required, to prevent money laundering. Anti-money laundering measures are especially necessary for the cryptocurrency space since transactions and currency holdings may be completely anonymous.
The boot sector virus made its debut during the floppy disk era and continues to infect computers by entering its boot sector through removable mediums such as flash drives. Also, email attachments are used for viral entry. Boot sector viruses are especially dangerous as they are activated once the infected computer is turned on. Since this virus encrypts the boot sector they very difficult to remove.
Based on the principles of the Byzantine Generals’ Problem. Byzantine Fault Tolerance describes the dependability of a system's functionality as errors occur in a distributed computer system.