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Digital security involves practices, tools and behaviors that protect devices, online accounts and communications from digital threats like hacking, surveillance, phishing, and data breaches. It is a must for individuals and organizations that use digital technologies. It safeguards personal information, prevents fraud and maintains trust in digital transactions. It is also critical for industries like finance, healthcare, e-commerce and government.

Cyber attacks can be as simple as a password written on a sticky note in an office cubicle or as sophisticated as a state-sponsored attack that targets a particular company. Attackers range from thrill seekers to vandals, to activists, to criminals seeking financial gain. The consequences of a breach can be devastating for companies that depend on digital systems: it can deprive customers of services, damage brand reputation and cause operational downtime.

In addition to preventing data breaches, strong digital security helps businesses comply with regulations and reduce the costs of incident response, legal proceedings and mandatory notifications that follow a breach. It also protects against the “hidden costs” that can drain resources for months or years following a breach.

Digital security involves a variety of techniques, including firewalls and antivirus software that monitor networks for unauthorized access and protect against malware and phishing scams. Other security measures include encryption, which converts data into an unreadable format that can only be accessed with the right key (something the user knows or possesses). Biometric authentication and digital signatures are additional tools used to secure accounts and confirm authenticity of digital transactions.