Read Andrew Ross’ article about how technology has evolved to protect us from cyber threats on Born2invest :
Guard dogs were first used by humans in 30,000 B.C. Where did they find these dogs? They adopted orphaned wolf pups. Since then, humans have used everything from moats around castles, security guards (during the Industrial Revolution, circa 1760 to 1840), home security systems back in the 1850s, steel vaults 18th-19th centuries, and encryption codes in the 20th century until today.
Read his full article here.