Intelligent CIO Africa Issue 14 | Page 89

//////////////////////////////////////////////////////////////////// t cht lk Cost per workflow loss of focus on threats and attacks that are actionable. Organisations that implement an ADR platform should expect to see a convergence of ‘investigations-to-response’ since more investigations are against validated conclusions rather than merely suspected attacks. Review, investigation and response workflows are both personnel and technology-dependent. Automation reduces personnel and technology dependencies. Reducing technology dependencies decreases personnel maintenance requirements. Thus, automation impacts personnel cost, technology cost, and maintenance cost. Leaders will see that entire steps of their workflows are able to be reduced or eliminated completely; delivering massive acceleration, huge savings and massive efficiency boosts as teams can focus on the validation of real incidents rather than wasting time on a wild goose chase. Automatic detection vs manual detection Establish a baseline for determining the ratio of detections your security stack produces vs the combined number of human detections you receive. To figure out the human detections, determine the number of staff detections (e.g. an employee recognises that their machine is malfunctioning, or an IT admin recognises that a system is performing in unusual ways) plus the number of external detections (e.g. the number of times you get a call from the authorities /IT Admins) plus the number of detections your security operations staff create by manually synthesising data from your security stack and Security Event and Incident Management (SEIM). This will give you a sense of the efficiency of your current system. With ADR you can expect the ratio to tilt substantially toward the automation side of the equation which means substantially better security operations efficiency. Percent investigation vs volume Determine what is slipping through the cracks. By measuring investigations versus alert volume, you can get a sense for what might be slipping through the cracks and creating risk. With the ADR system you should expect to see a shrinking gap and massive improvement. For example, if an organisation is typically performing three investigations for every 100 alerts (3/100 or 3%) and then implements an ADR which sees a 10% alert-to-conclusion rate and an additional two investigations (5/10 or 50%) that can yield a massive 1,500% increase to security operations effectiveness. www.intelligentcio.com Rate of validation Roland Daccache, Senior Regional Sales Engineer MENA, Fidelis Cybersecurity Ratio of investigation to response This metric shows how many items that were investigated lead to a response workflow going through completion. The ratio indicates where security operations teams may be wasting time. If an investigation is started and then abandoned due to lack of context, insight or actionable intelligence, then time and resources are not only wasted, but the result is a huge opportunity cost in lost time and “ DISRUPTED BUSINESS MEANS SUBSTANTIALLY HIGHER COST FROM DELAYS, LOST PRODUCTIVITY OR EVEN LIABILITY TO THIRD PARTIES. This metric measures the time it takes to make a decision. Analysis paralysis and security operations uncertainty increases dwell time and risks the spread of an attack. It also takes time away from investigating and responding to other attacks or compromises that may be happening at the same time. By measuring the decision rate both before and after implementing an ADR platform, the security operations team is able to demonstrate agility and increased response capacity without adding scarce people resources. Remediation response vs reimage This metric measures business disruption. Disrupted business means substantially higher cost from delays, lost productivity or even liability to third parties. The more surgical and remote responses that are enabled by the ADR platform, the fewer ‘big hammer’ fixes of reimaging an end-user’s endpoint have to happen. That means less business disruption and inconvenience for employees. Business disruption can be quantified based on the staff role, affected device role and length of time for a response. Taking someone’s laptop for a day to reimage it is an inconvenience. Taking down a payment processing server is a substantial disruption – even when hot backups and clustered failovers are part of the solution. The ADR approach thinks differently about security operations. ADR is based on a purpose-built platform designed to deliver validated conclusions about attacks, intrusions and compromises at any stage of the attack lifecycle while also automating the response capability to those attacks. This transformation enables new metrics that impact the organisations’ business and bottom line. Each of these metrics point to the potential and necessity of adopting an ADR approach and making it the cornerstone of your cybersecurity strategy in 2018 and beyond. n INTELLIGENTCIO 89