zero-day exploit

Unknown software weakness

A zero-day exploit is an attack that takes advantage of a software vulnerability before developers know it exists or have released a fix.

The "zero days" refers to the time available to patch the flaw—none.

These exploits are prized by hackers and intelligence agencies because targets have no defense: The breach used a zero-day exploit in the browser.

Also called simply a zero-day.

hacking

cyberattack

Malicious digital intrusion

backdoor · rootkit · spyware · cyberespionage · black hat · cybercrime · payload · privilege escalation · remote access · nation-state

vulnerability

unpatched

Missing corrective updates

proof of concept · weaponization · disclosure · bug bounty · fuzzing · reverse engineering

market

underground

Below ground or countercultural

  • dark webEncrypted, unindexed online networks
  • brokerTransaction intermediary for hire
  • auctionCompetitive public sale

price · arms dealer · stockpiling · hoarding · gray market · cyber weapons · trade · valuation · exclusive · premium

defense

patch

Material covering damage

heuristics · behavioral analysis · sandboxing · forensics · containment · remediation · workaround · access control · monitoring

Opposites
security posture

zero-day exploitsecurity patch

Update addressing software vulnerabilities

hotfix · security update

Family

zero, exploit, exploits, zero-day

Familiarity
Top 500,000
Profile
Used worldwide · Abstract · Negative · Rated G