IT Security to protect against email attack

Job ID: 31879459

Budget: $30 – $250 AUD

Our company uses microsoft email, office 365 and google for our domain. Our emails have been hacked and have stopped working, as well as our domain.

I need somebody to look into how it has happened, fix the issues and make changes so we can't be hacked again.

We are a small company with 10 staff.
Related categories: Web Security Computer Security