Modern businesses have built IT
infrastructure to conduct their regular activities. On one hand, IT infrastructure
allows organizations to become more streamlined and productive, but on the
other hand, there is a persistent challenge that all businesses must face:
cybersecurity threats and incidents. Slapping up some firewalls and subscribing
to an antivirus software are old-fashioned methods to effectively secure the
enterprise, that is why businesses apply more dynamic method of managing the
security of their IT infrastructure: Security Information and Event Management
SIEM is a software solution that aggregates and analyses activity from many different resources across your entire IT infrastructure. By combining SIM (security information management) and SEM (security event management), the tool aims to aggregate log data across users, machines, and servers for real-time event log monitoring and correlations to find security threats and mitigate risks in real-time. Whether to protect health IT infrastructure or financial information, or prevent threats and data breaches, SIEM has become increasingly crucial.
are the features and functions of a SIEM?
SIEM tools are an important part of the data security ecosystem. They aggregate data from multiple systems and analyse that data to catch abnormal behaviour or potential cyberattacks. SIEM collect ssecurity data from network devices, servers, domain controllers, and more. At its core, SIEM is a data aggregator, search, and reporting system. SIEM gathers immense amounts of data from the entire networked environment, consolidates and makes that data human accessible.
Gartner identifies three critical capabilities for SIEM – threat
detection, investigation and time to respond, but there are other features and
functionality such as basic security monitoring, advanced threat detection, forensics
& incident response, log collection, normalization, notifications and
alerts, security incident detection and threat response workflow.
SIEM Benefits that enhance the IT Security
Dismissing the SIEM importance could lead to long-term cybersecurity
problems. The benefits of SIEM are numerous, but in the article will be listed
some of the most popular ones which enterprises enjoy and utilize to ensure a
secure network and efficient business processes.
Every business, in every industry, requires the fulfilment
of at least some regulatory mandates. Enterprise which does not follow the
compliance requirements could suffer problems such as loss of consumer
consequences, loss of sales, and the legal costs of resolving lawsuits.
SIEM solutions often provide out-of-the-box report templates
for most compliance mandates such as HIPAA.
Through its compliance capabilities, SIEM helps enterprises patch their
IT environments and helps to regulate third-party access. Both could represent
security holes and compliance failures if not properly secured. Furthermore,
your SIEM solutions can use the data it collects to help fill those templates,
saving your security team time and resources.
2. Threat Detection and Security Alerting
When talking about cybersecurity, one of the key benefits of
SIEM is its threat detection and security alerting capabilities.
First, SIEM often connects your enterprise and IT security
team to multiple threat intelligence feeds. They keep your enterprise
up-to-date with the latest information on cyber attack evolution and the most
pressing threats facing businesses similar to yours. Thanks to this knowledge,
you can accurately secure your enterprise against the most likely digital
Then, after your SIEM solution aggregates and normalizes the
data, it can analyse it for potential threats through security event
correlation. When your solution detects a correlated security event, it immediately
sends your IT security team an alert prompting an investigation. This allows
your team to concentrate their efforts on specific potential problem areas and to
recognise whether your enterprise suffered a breach. After that, they can run
your incident response plan and remediate the threat as quickly as possible,
reducing the damage you suffer.
3. Improved Efficiency
SIEM tools can significantly
improve your efficiency when it comes to understanding and handling events in
your IT environment. With SIEM tools, you can view the security log data from
the many different hosts in your system from a single interface. SIEM tools also include automated mechanisms
that use data correlation and analysis to stop attacks as soon as they are
detected. These capabilities enable SIEM tools to stop attacks while they’re
still in progress and to contain hosts that have already been compromised, thus
reducing the impact of a security breach. By responding quickly to perceived events,
SIEM tools can help you reduce the financial impact of a breach – as well as
the amount of damage that occurs in the first place.
4. Data aggregation and visibility
Visibility into your entire IT environment is one of the greatest
benefits of SIEM. This visibility goes hand in hand with the way that logs are
normalized and correlated in a SIEM tool. No matter the size of a business,
there is a variety of different components in the IT environment, each of which
is generating, formatting, and sending huge amounts of data. Not only are these
components producing tons of data, they are likely each doing so in different
ways. Trying to make sense of all that data manually is a nearly impossible
task, and one that would necessitate devoting a huge amount of time and energy
to a job that can easily be automated.
This is the reason why the SIEM capabilities that relate to
data aggregation and normalization are so beneficial. The SIEM tools not only
collect and store the data from the security tools in your IT environment in a
centralized location, but they also turn them into a uniform format so you can
easily compare the data.
5. Case Ticketing and Management
Identifying security incidents is not helpful if that is not
followed by investigation, tracking, resolution and root-cause analysis. SIEM
facilitates incident ticketing and management which makes it easier to not only
drive problem resolution, but also to maintain a case record so that recurring
problems are identified for deeper and more conclusive troubleshooting.
6. Change Intelligence
In most cases security events are a result of a major change
such as an upgrade made to an existing system or the replacement of a business
application with a new one. For that reason SIEM provides granular change
intelligence that detects both planned and unplanned changes to network, server
and application configuration. This ensures that both operational and security
outages can be tackled proactively.
All the organizations, regardless of their size, need to undertake
cybersecurity measures to ensure the safety of their digital assets. In times
when cyber-attacks are becoming more advanced, the companies should constantly strengthen
the organization’s cybersecurity posture. Companies should also realize that
any attack on their IT infrastructure can cost them not only data loss but
public trust and reputation, as well. To avoid this situation, cybersecurity
has become a vital part of any organization. When combining Security Information
Management and Security Event Management capabilities in a single solution,
SIEM helps security analysts to achieve threat detection, response, security
incident reporting, and compliance ability. All these capabilities make SIEM an
essential part of a modern cybersecurity strategy.