The SolarWinds hack, first detected in December 2020 and referred to as “the largest and most sophisticated attack the world has ever seen” by the president of Microsoft, was a watershed moment in cybersecurity. Hundreds of organizations, including Fortune 500 companies and government agencies, were affected, with sensitive data compromised. A year on, a major study conducted by Splunk has found that 78% of companies expect the same thing to happen again.