Intelligent CISO Issue 19 | Page 44

Sascha Giese, Head Geek at SolarWinds industry unlocked Public sector organisations are heavily targeted due to the rich quantity of data they hold. It’s crucial that citizens can trust government organisations not to let their personal information fall into the wrong hands. SIEM tools might just be the answer to this. Sascha Giese, Head Geek at SolarWinds, identifies exactly what a SIEM is and how public sector organisations, including governments, can make the right decision when choosing which SIEM tool is right for them. 44 C Cybersecurity is one of the biggest challenges being faced throughout the public sector today. Keeping the data of the general public safe and inaccessible is not only crucial for maintaining the trust of citizens, but also for ensuring critical and sensitive data doesn’t fall into the wrong hands. The task of maintaining and advancing cybersecurity in a public sector organisation is complex and while no single tool or technology can solve this problem, Security Information and Event Management (SIEM) software might just be the answer to the biggest dilemmas. Spelling it out So, what is SIEM? SIEM tools blend Security Information Management (SIM) with Security Event Management (SEM) capabilities into a single solution, with the intention of providing comprehensive threat detection, incident response and compliance reporting capabilities. SIEM tools work by collecting data from event logs of most devices in an organisation, from servers and firewalls to anti-malware and spam filters. The software then analyses these logs, identifies any anomalous activity and issues an alert – or, in many cases, responds automatically. Specifically, with SIEM software, an IT professional can quickly identify potentially suspicious activity, learn who has been affected and implement automated mechanisms to stop an attack before it affects the organisation. And when the IT organisation in question is part of the public sector, protecting central government data from harm means protecting people across the UK. One of the main advantages of SIEM software is how it pulls together data consolidation and centralisation. When data is coming from multiple places – for example, from different departments of a hospital, or across different sites – SIEM software consolidates and analyses this data in its entirety; the IT team can then view all the data from a single dashboard. A single, unified view can help find trends, spot any unusual activity and help establish a proactive (as opposed to a reactive) response. Making the right decision The range of SIEM tools from third- party businesses today is huge, with each offering its own benefits. These tools can provide everything an organisation needs, from Big Data analytics to centralised forensic visibility to Artificial Intelligence-driven behaviour analytics. However, it can be a real challenge to choose a tool to best fit the organisation’s requirements. There are multiple things to consider when choosing a SIEM solution. Some are more obvious than others, such as scalability; IT teams understand the importance of investing in a tool that will grow as the organisation’s needs grow. Cost is also always a major factor, particularly for the public sector where budgets are typically quite restricted. Issue 19 | www.intelligentciso.com