Case study · Security

Preventing a data breach through leaked accounts

After reading about another major database leak, a client asked us to audit its corporate accounts. The task: rule out corporate accounts being leaked.

Client
Corporate client (under NDA)
Service
Security audit
Scope
Personal and corporate e-mail accounts
Outcome
Leak scanning built into the security protocol
Security breach — preventing a data breach through leaked accounts

In numbers

3

audit steps

5

controls put in place

0

third-party access found

2FA

two-factor authentication

100%

compromised accounts locked

01 — Challenge

News of yet another large database leak made the client ask a direct question: could its corporate accounts be among the leaked ones, and could someone get in with them?

02 — Steps taken
  1. Every personal and corporate e-mail address was scanned against the available leaked databases through an API. The scan revealed a number of compromised accounts and their passwords, and some personal accounts used passwords similar to corporate ones.
  2. All compromised accounts were locked.
  3. An activity audit of the compromised accounts ruled out any third-party access to corporate accounts or harmful activity.
03 — Resolution
  1. All users changed their passwords according to the security standards.
  2. A stronger password policy was enforced, with a forced reset on any sign of compromise.
  3. Two-factor authentication (2FA) was enabled for all accounts.
  4. Some corporate resources were restricted to access from inside the corporate network.
  5. Leaked-account scanning became part of the company security protocol.

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