Cybersecurity is critical to governments, businesses, organizations, and individuals. Browse Investopedia’s expert-written library to learn more.

Frequently Asked Questions
  • What is Two-Factor Authentication (2FA)?

    Two-factor authentication (2FA) is a security measure that requires two separate forms of identification in order to access something. The first factor is typically a password while the second can be a code sent to the user’s phone or tablet or biometrics using their fingerprint, face, or retina 2FA combines two of the following: something you know (password), something you are (your fingerprint, face, or retina), and something you have (a phone or tablet).

  • What is cybersecurity?

    Cybersecurity describes the collective measures to protect internet-connected devices, networks, and data, from unauthorized access and criminal use. Cybersecurity seeks to ensure the confidentiality, integrity, and availability of data over its entire life cycle. Cybersecurity protects both software and hardware. It can be used to protect everything from personal information to complex government systems.

  • Are cyber attacks going up?

    According to the 2022 Global Cyber Threat Report by SonicWall, a cybersecurity company, governments around the world saw a 1,885% increase in cyber attacks in 2021. The Chair of the Federal Reserve Jerome Powell in the U.S. also expressed concern over the state of cybersecurity. In February 2020, Powell stated that cybersecurity is the greatest risk facing the financial system.

  • What is Aaron’s Law?

    Aaron’s Law is a bill introduced to the U.S. Congress in 2014 Representative Zoe Lofgren of California. The bill was named after Aaron Swartz, an early internet innovator and activist who committed suicide while facing a potential 35-year prison sentence for illegally downloading millions of academic articles that were only available via a subscription service. The bill did not pass, but is still used in legal discussions about internet privacy.

Key Terms

Explore Cybersecurity

Top Problems with Financial Data Aggregation
Smiling customer service representative using computer at desk
Third-Party Verification (TPV)
Mail envelops with dark background.
What Is a Value-Added Network (VAN)?
What Is Data Loss?
What Is Hacktivism?
data security concept, login and password
Zero-Day Attack
Gray Box Definition
What Is a Denial-of-Service (DoS) Attack?
Supply Chain Attack Definition
Internet Mobile Banking and Internet of Things Concept
Secure Electronic Transaction (SET) Definition
De-Anonymization Definition
Who knows what a hacker can do with your information
Cyberattacks and the Risk of Bank Failures
Ransomware
Aaron's Law Definition
Conceptual image of red-headed woman in cyber storage facility touching a lock on a screen
Cybersecurity
The Best VPN Providers
Encryption
Close up of black and white mechanical computer keyboard with closed gold security lock laying on top of it.
Two-Factor Authentication (2FA)
Biometrics Definition
Macro Virus
Fiber Optic Light Trail Communication Connecting Highrise Buildings
Data Migration Definition

Laws & Regulations

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