Lessons Learned from Years with Security

May 8, 2018

Internet Services

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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. 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. 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. 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.

File changes tend to be one of the signal that there is data breach in the company in question. In most cases, cybercrime begins by replacement, deletion, modification and changing of files on the network. 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. It would be critical to figure out real time monitoring of the network especially for a company that deals with high end data. The experts should always focus on differentiating between normal network changes and suspicious changes on the network. To a layman technician, exfiltration may look like normal activities and hence the need to work with an expert who can easily identify the irregularities and work
on them towards securing data.

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.

Device tampering may be yet another sign that there is a data breach. It is a great red flag where a device is found on after it was initially switched off. 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.