Only the combined use of different tools and technologies results in reliable protection. Firewalls are important components of basic protection, they prevent unauthorised access to your network. They can be hardware or software-based and monitor and control incoming and outgoing network traffic based on a set of predefined rules. An equally important basic element is malware or antivirus protection. This software helps to detect and remove malicious software (malware) from your system. It does this by scanning your files and processes for known malware signatures and behaviours.
An intrusion detection system (IDS) is also helpful. It is used to detect and prevent unauthorised access to your network by monitoring network traffic for signs of suspicious activity. They work host- or network-based and analyse network traffic for signs of potential security breaches. An advanced level is the SIEM (Security Information and Event Management). This tool provides real-time support in managing and analysing security events from various sources. It can provide insight into potential security threats and help you take proactive measures.
Data Loss Prevention (DLP) is a useful addition
Data loss prevention (DLP) tools provide a useful complement. These tools are designed to prevent sensitive data from leaving your organisation's network by monitoring the flow of data. This can include identifying and preventing the transfer of sensitive data via email, file sharing services or other channels.
Increasingly, multi-factor authentication (MFA) is becoming the standard. MFA provides an additional layer of security by requiring users to provide more than one form of authentication before gaining access to a system or application. This can be something the user knows (e.g. a password), something he or she owns (e.g. a token or smart card) or something linked to his or her person (e.g. biometrics). Encryption is also becoming more and more standard. With encryption, data is stored in such a way that even if an attacker gains access to your data, he or she cannot read it without the corresponding key or code.