Comparisons
Comparisons
Almost every security task has several solutions, and they are not equal. You can receive a second factor by SMS, in an app or with a hardware key; you can store passwords in a notebook, in your browser or in a password manager. In this section we compare the methods by their strengths and weaknesses to make choosing easier. The best method is the one you will actually keep using.
A weak second factor is better than none. But if you have a choice, pick a method that cannot be intercepted along the way.
How this section works: we compare methods, not products. Assessments are given in general terms, without percentages or rankings. Password recommendations are based on NIST SP 800-63B.
Second-factor methods
| Method | Strengths | Weaknesses |
|---|---|---|
| SMS | No separate app needed, works on any phone, familiar to most users | Weaker than other methods: the code can be talked out of you over the phone or intercepted through a SIM swap; without signal the code will not arrive |
| Authenticator app | Codes are generated on the phone itself, independent of the mobile carrier, and work offline | Without backup codes, regaining access after losing your phone is hard; the code can still be entered on a phishing page |
| Hardware key | Checks the website's address and protects well against phishing; no code to type in manually | You need to carry the key and keep a spare; not supported by every service |
Ways to store passwords
| Method | Strengths | Weaknesses |
|---|---|---|
| Paper notebook | Out of reach of remote attackers, independent of devices | Can be lost or fall into the wrong hands; impractical for many long, unique passwords |
| Built-in browser storage | Convenient, free, fills in passwords automatically | Only as secure as the sign-in to the device itself and to the browser account; harder to use across different browsers |
| Password manager | Encrypts passwords, generates long unique passwords, works across devices, often warns about breaches | Everything rests on the master password: make it long and protect it with a second factor |
Related sections
- Tools
Types of protection tools: password managers, authenticator apps, hardware keys, breach checks, backups.
- Practical guides
Step-by-step guides: two-factor authentication, password managers, breach checks, phishing, diploma verification. Also home to the article catalogue.
- Glossary
Glossary: accounts and passwords, money and fraud schemes, documents.
Sources
- NIST SP 800-63B
Laws, bank rules and service features change. This information is based on official sources as of the preparation date — check the current versions of laws and the instructions of the services themselves.