A data breach is the intentional or unintentional release of secure information to an untrusted environment. Other terms for this phenomenon include unintentional information disclosure, data leak and also data spill. Incidents range from concerted attack by black hats with the backing of organized crime or national governments to careless disposal of used computer equipment or data storage media. Many jurisdictions have passed data breach notification laws, requiring a company that has been subject to a data breach to inform customers and take other steps to remediate possible injuries.