Is there service or solution for mad former employees?

I was wondering if there is a vendor service or program that prevents former employees access their former computer network?

Example - Well let's say that a company has to downsize the company and outsource some of the jobs. Now say that the employees that are let go some of them are mad and still have access to the company network.


Are there any solutions or solutions to prevent this?

Thanks for any responses.
 
I was wondering if there is a vendor service or program that prevents former employees access their former computer network?

Example - Well let's say that a company has to downsize the company and outsource some of the jobs. Now say that the employees that are let go some of them are mad and still have access to the company network.


Are there any solutions or solutions to prevent this?

Thanks for any responses.

Delete their user on active directory.
 
The reason I ask is because I have to answer the question can we prevent this from occurring again from using a vendor solution or service that we don't currently use? In a fake scenario.
The fake scenario is:
Early one Monday morning the Security director gets a call. Within the past 24-48 hours someone has changed the permissions on individual shared folders because of this until the Network Administration team can reestablish the permissions everything on the network is "browse-able"; nothing is private. The CEO is horrified and calls the CIO. No other malicious activity has been detected so far on the network. The previous Friday, a number of individuals were downsized as a result of an outsourcing initiative to India. The login IDs of some of those people are still active.
• here is no IDS/IPS (Host or Network) deployed.
• Firewall and router logs are review occasionally but usually only for testing and troubleshooting.
• Anti Virus is deployed company wide, but the client firewall project is still in the pilot phase.


The question I have to answer is can we prevent this from not happening again from using a vendor solution or service that we don't currently use?
 
if you're literally mad a psychiatrist might help, and a tip for mad former employees in general: don't go postal. its not worth it.
 
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