One would tense a great deal if cybersecurity professionals noticed data breach. 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 also need to remember that data breaches tend to not only to have an intruder access information but also tends to lead to public embarrassment which may lead to customer defection as well as other related side effects. The company may also end up losing trading partners. There maybe measures put to ensure that there is no exfiltration but it is always essential to keep checking just to be sure that there is no data breach.
Among the first signal that all is not well with the network would include critical file changes. One would need to note that cybercriminals have high chances of deleting files, replacing files, modifying them or even changing them to avoid any 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. It would also be modest to focus on distinguishing between data breaches on the network as well as normal operations of the network. An organization would, therefore, need a technical organization that can deal with such sensitive issues that can easily identify neutral and positive changes from negative changes as fast as possible.
One would also need to be alarmed especially in a case where the internet is extremely slow. An instance of slow abnormally very slow internet may be yet another sign that there is data breach and hence the need to move fast to secure the network. You would need to make sure that both the network and the devices as well checked by an expert to avoid instances where you allow more access to data by the criminals. Among the possible causes of the slow internet may include a malware on the devices, a virus as well as possible outbound traffic.
There are also instances where there tends to be tampering of the devices. 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.