Bitdefender offers a unique package of both virus scanning and data security. This single program is enough in itself to protect your device against all cyber threats such as Trojan horses, spyware, and viruses. With Bitdefender to guard your computer, other digital threats like rootkits, computer worms, and ransomware stand no chance to infect your device. Visit the site central.bitdefender.com to proceed with the login. Enter your login credentials to Sign In to your account. A small window in the middle of the screen will display three options. Select the ''Buy Bitdefender'' option to purchase the product.