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Optiv Cybersecurity Dictionary Breadcrumb Home Cybersecurity Dictionary Hacker What is a Hacker? A hacker is someone who uses technical expertise to solve computing challenges. The term may refer to any skilled programmer – including “ethical hackers” – but in common contemporary usage, it typically signifies a cybercriminal. Hacking usually describes attempts to compromise digital systems, including computers, smartphones and even critical infrastructure. Hackers are inspired by several motivations, including financial gain, political/social goals (hacktivism), state or corporate espionage or simply amusement. Image Related Services APT Groups Ransomware Network Security Connected Devices Related TermsAPT - Advanced Persistent ThreatsC2 - Command and ControlDwell TimeMTTD - Mean Time to DetectMTTR - Mean Time to Respond/RemediateIndicator of Compromise (IOC)Fileless AttacksRansomwareSQLi - SQL InjectionXSS - Cross Site ScriptingTTPs - Tactics, Techniques, and ProceduresCVE - Common Vulnerabilities and ExposuresOWASP - Open Web Application Security Project Share: Contact Us
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