Skip to content

Davey Winder

delivering award-winning technology journalism since 1991

  • home
  • about me
  • follow me on mastodon
  • privacy policy
  • Toggle search form

Two Factor Authentication (2FA) 101: What it is, why it matters for cybersecurity

Posted on April 27, 2017April 27, 2017 By Davey Winder

It’s time to get serious about security, to break through the bullshit, and to implement Two Factor Authentication right now!

There are, simply put, three generally accepted methods of authenticating identity: knowledge; possession; and inherence. The first is familiar to everyone in the form of the password, passphrase, PIN, or even the pattern drawn with a finger on some smartphone lock screens; this is also sadly the weakest form of authentication. The knowledge factor relies on something you know, and that’s at once its biggest positive and negative.

On the plus side, a user can create (if the login process allows, and all enterprise strength ones should) a truly ‘strong’ password. I have placed strong within inverted commas for a reason; one person’s strength is another’s weakness. So, while the user may well think that transposing an “a” for an “@”, and throwing a couple of exclamation marks at their partner’s name is strong, a hacker could crack it in less time than it took me to write this sentence.

Click here to read complete article

Analysis Tags:2FA, Advice, authentication, guide, passwords

Post navigation

Previous Post: What businesses can learn from the Yahoo! data breach
Next Post: Microsoft Pen Authentication: do we need yet more biometric tech?

Related Articles

Forget Passwords, This New Tech Is Nearly Hacker-Proof, 1Password Says Analysis
Gmail Hackers Leave Vital Clues Behind—Check These 3 Things Now Analysis
No, 1Password Has Not Just Been Hacked—Your Passwords Are Safe Analysis
New Critical Security Warning For iPhone, iPad, Watch, Mac—Attacks Underway Analysis
New Emergency Chrome Security Update After Critical iOS 16.6.1 Release Analysis
New iPhone iOS 16 Bluetooth Hack Attack—How To Stop It Analysis

Categories

Post Archive

Tags

0day Analysis Android Apple Apps breach bug bounty Business Chrome crime Cybercrime Data Protection Encryption Enterprise Google Government Hackers Hacking Health healthcare industry iOS IoT iPhone Malware Microsoft News NHS Opinion passwords Phishing Privacy ransomware Research Russia Samsung threat intelligence Twitter Update Vulnerabilites vulnerabilities Vulnerability Windows Windows 10 zero-day

Copyright © 2025 Davey Winder .

×
Cookies
We serve cookies. If you think that's ok, just click "Accept all". You can also choose what kind of cookies you want by clicking "Settings". Read our cookie policy
Settings Refuse all Accept all
Cookies
Choose what kind of cookies to accept. Your choice will be saved for one year. Read our cookie policy
  • Necessary
    These cookies are not optional. They are needed for the website to function.
  • Statistics
    In order for us to improve the website's functionality and structure, based on how the website is used.
  • Experience
    In order for our website to perform as well as possible during your visit. If you refuse these cookies, some functionality will disappear from the website.
  • Marketing
    By sharing your interests and behavior as you visit our site, you increase the chance of seeing personalized content and offers.
Save Refuse all Accept all
GDPR Cookie Policy