Match the risk mitigation tool or technique to the vulnerability:

User opens unknown email attachment

- A. B. C. D. E.

Operating system has known vulnerability

- A. B. C. D. E.

High volume employee Internet traffic degrades network performance

- A. B. C. D. E.

DDos attack from off-site hackers

- A. B. C. D. E.

Company is losing good employees to other jobs because they can't work from home.

- A. B. C. D. E.

where: -

A.Make sure security patches are up to date

B.Install web filtering

C.Email filtering and quarantine

D.Implement VPN with secure encrypted communication

E.Implement IDS system