Data Nexus

Security

Two-factor and multi-factor authentication

Requiring a second proof of identity beyond the password — and the factors differ enough in strength that “we have 2FA” says almost nothing on its own.

Also called 2FA · MFA · Двухфакторная аутентификация

01/What it means

In ascending order of resistance: SMS codes, which are defeated by SIM swap and by phishing pages that relay the code in real time; app-generated codes, which survive SIM swap but are still relayed by a convincing phishing page; push approvals, which add fatigue attacks where a user eventually taps yes to stop the prompts; and hardware keys or passkeys, which are bound to the site's origin and therefore cannot be handed to a fake one.

For the accounts a business is actually attacked through — the mail account, the ad account, the social profiles, the domain registrar — the only category that stops a competent phishing attempt is the last one. Everything above it is a speed bump.

02/What people get wrong

Protecting the business accounts strongly while the mail account behind them keeps SMS recovery is a lock on a door with the window open. Attackers do not attack the ad account; they take the mailbox and ask it politely for everything else.

Who does this

A definition is free. Being answerable for the figure it produces is the part that is bought, and this term is a working part of the engagements below.

IT consulting for companies in Dubai and across the Emirates
A company owns what it can recover without asking anyone's permission. The rest is rented.
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The definitions are the easy part. Whether the figure on your dashboard was computed this way is a different question, and usually the more expensive one.