Word: data breach
Definition:
The unauthorized movement or disclosure of sensitive information to a party, usually outside the organization, that is not authorized to have or see the information.
Sample Sentence:
The company faced severe fines due to a data breach exposing customer financial records.
Why It Matters:
One of the most serious cybersecurity incidents with legal and financial consequences.
Quick Tip:
Encrypt sensitive data and use multi-factor authentication to help prevent breaches.
Source: https://niccs.cisa.gov/resources/glossary
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