What needs to be done after a cyber attack

What needs to be done after a cyber attack. In the previous article (here and here), we have discussed a way to identify that our system was attacked by somebody, either the attack was successful or not. next question is What needs to be done after a cyber attack / during the attack (if you know its currently happening where you are watching what they are doing through the log file). (more…)...
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How to identify a cyber attack

How to identify a cyber attack

If somebody is doing something that could harm you physically, then you will know immediately that the person is attacking you by seeing the movement that he/she is doing. So the processes are: receive input (incoming movement), analyse it (is it an attack or not), and decide the action. very simple :-). This article will discuss topic about How to identify a cyber attack. In the previous article, we have discussed several types of attack on cyber world. Now, the next question is, how to identify a cyber attack on my system / network? (more…)...
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What is open relay email server?

What is open relay email server?

Open-relay email server? What is that? In the last few days, I was involved in the troubleshooting of an email server of an organization. I was doing this remotely because I am still in Australia, and they are an 8-hours flight from here, located in a different country. So the point is, their email server is having severe issues. The network traffic rose suddenly, got a massive amount of email sending or receiving (very unusual), the amount is so huge, which causing legitimate users having a hard time accessing their email service. Well, after checking here and there, spending an amount of time troubleshooting, tadaaa..... it turns out that the email server is an open relay. What is Open relay? Open relay means a server allows an external party (outside the defined network) to send email through the server, and the server becomes like a repeater that relays/forward an email from outside to another email server. That is precisely how a relay works, right?...
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