The shared login is your weakest control

A pile of old metal keys

Most business systems now keep a log of who changed what, and most support two-factor sign-in. Both are undermined by a habit we find in nearly every company we review: a shared account that everyone uses because it is convenient.

What a shared account costs you

  • The log shows that “the IT account” made a change. It cannot tell you which person did.
  • When someone leaves, the password has to change for everyone, so it often does not change at all.
  • Two-factor codes get forwarded around the office, which defeats their purpose.
  • Nobody feels responsible for an account that belongs to everybody.

Why two-factor sign-in matters so much

The US Cybersecurity and Infrastructure Security Agency advises every organization to require multifactor authentication, starting with administrators and anyone who connects remotely. A stolen password is the most common way in. A second factor means the password alone is not enough.

The fix is mostly discipline

  • Give each person their own account on every system that supports it.
  • Require two-factor sign-in, using an app or a hardware key where you can.
  • Keep any shared account that cannot be avoided in a password manager, and limit who can open it.
  • Remove access on the day someone leaves, from a written list of the systems they used.
  • Have a named person read the security logs on a schedule.

A log that nobody reads is only useful after something has gone wrong.

Related service: IT security & penetration testing.