A mail bombing attack is a terrorist tactic involving the use of letter bombs or parcel bombs to cause harm or intimidation. Letter bombs are typically disguised as ordinary mail, while parcel bombs are concealed within packages. Both types of devices are designed to explode when opened, causing injury or death to the recipient or bystanders.
Mail bombing attacks have been used by a variety of terrorist groups and individuals throughout history. Some of the most notable mail bombing attacks include the 1978 letter bomb campaign by the Unabomber, which killed three people and injured 23 others, and the 2001 anthrax attacks, which killed five people and sickened 17 others. Mail bombing attacks are considered a serious threat to public safety, and law enforcement agencies around the world work to prevent and investigate such attacks.