It tends to be disturbing for any company or business to come to learn that there is a data breach on its networks. It is unfortunate that even with the growth of technology in the modern world, cybercriminals are still finding their way into networks something that calls for even faster upgrade of network security to avoid exfiltration. One would not only have data in the wrong hands but would also lead to possible customer loss, public embarrassment among others. The company may also end up losing trading partners. Even when there are measures to make sure that there is no data breach, it would be essential to make sure that one identifies signs that there is any exfiltration on your network and hence figure out a way of responding on time.
Among the first signal that all is not well with the network would include critical file changes. Most of the cybercriminals tend to change, modify, replace, delete, or alter files with the intention of prolonging the detection. Changing of files tends to take a very little time and hence the need to figure out the best way to secure the network. For any company with complex IT infrastructures, it may take longer for the organization to note especially where the team in charge of data breaches is not up to task. In that case, it would be critical difference between normal changes and data breaches. It would be critical to work with an expert who is updated with the most recent exfiltration technology by cybercriminals.
One would also need to be alarmed especially in a case where the internet is extremely slow. Where the internet is abnormally slow, there are high chances that there is a possible exfiltration plan and hence the need to act fast. Among the best decisions one can make include reporting to the experts with an intention of investigation of the network in question as well as company’s devices. The most probable causes of slow internet tends to include a virus on the network, a virus or even outbound traffic.
One would also need to note that the devices may be tampered with as well. It is a great red flag where a device is found on after it was initially switched off. You would also be alarmed the moment there are fake antivirus warnings, popup messages, or even weird browser toolbars. It would be safe for one to make sure that he or she has the devices checked by an expert before moving on to work with the device in question.
Cited reference: useful link