A decentralized, trustless mechanism that allows individuals to exchange one cryptocurrency for another between blockchains through the use of a smart contract. Atomic swaps are peer-to-peer where the smart contract acts to prevent a malicious party from taking currency from the person who initiates the deal.
A blockchain is a self-affecting database that is protected from modification using encryption, serving as a digital ledger system that records transacted information in chronological order. Although primarily associated with cryptocurrency, blockchain technology is proving to be a revolutionary way to propagate and store data securely: bestowing this technology the potential to revolutionize entire industries.
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.