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: Meaning, Overview, Examples
Mail envelops with dark background.
Value-Added Network (VAN): Definition, How It Works, and Purpose
Data Loss
Hacktivism: Types, Goals, and Real-World Examples
data security concept, login and password
Zero-Day Attack
Gray Box
Gray Box
Denial-of-Service (DoS) Attack: Examples and Common Targets
Supply Chain Attack
Internet Mobile Banking and Internet of Things Concept
Secure Electronic Transaction (SET): Definition and How It Works
Is Apple Pay Safe?
Who knows what a hacker can do with your information
Cyberattacks and the Risk of Bank Failures
Aaron's Law
Digital cloud security background
Cybersecurity Definition
The Best VPN Providers
What Is Encryption? How It Works, Types, and Benefits
Close up of black and white mechanical computer keyboard with closed gold security lock laying on top of it.
What Is Two-Factor Authentication (2FA)? How It Works and Example
Macro Virus
Macro Virus
Data Migration
Data Migration
Page Sources
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  1. SonicWall. "2022 SonicWall Cyber Threat Report."

  2. Federal Reserve.