Signs of Data Breach on a Network
It tends to be the worst fear of any cybersecurity profession to be informed by a third party entity or even by law that he or she has suffered a data breach. Even with the growth of technology towards securing data and minimizing risk, some organizations tend to become victims of exfiltration of sensitive data from their system which can last for weeks or even months. It is also unfortunate to note that data breaches not only lead to landing of data into unsafe hands but also tends to cause public embarrassment, possible customer defection as well as possible deterioration of trade bonds with potential and current trade partners. Trade partners for the business in question may also become skeptical about the business in question especially where the breach is highly publicized. It would be critical to making sure that, there is no data breach something that demands continuous monitoring of the network.
File changes tend to be one of the signal that there is data breach in the company in question. 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. Depending on the criminal in question the changes can take only a few minutes to make these changes and may need the organization to be actively monitoring to detect such changes. According to Santosh Devaraj Secure Logic, there may be need for real time monitoring of the network especially where the company holds sensitive information and hence the need to properly secure information. It would also be modest to focus on distinguishing between data breaches on the network as well as normal operations of the network. 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. 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 may, therefore, consider an immediate report and investigation of your company network or your devices the moment you not that your internet is suspiciously slower than normal. Slower internet may be an indication that there is a virus, an onboard malware, or even outbound traffic.
There are also instances where there tends to be tampering of the devices. In a case where there is any device that is noted to be running after it was turned on, it simply means that someone on-site or with remote control tampered with the device. Weird browser toolbars, popup messages, and antivirus warnings may be some of the indications that your device is bugged. 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.