[4][5] On July 19, 2024, it issued a faulty update to its security software that caused global computer outages that disrupted air travel, banking, broadcasting, and other services.

[15][16] In May 2014, CrowdStrike's reports helped the United States Department of Justice to charge five Chinese military hackers with economic cyber espionage against U.S.

[17] CrowdStrike also uncovered the activities of Energetic Bear, a group connected to Russia's Federal Security Service that conducted intelligence operations against global targets, primarily in the energy sector.

[18] After the Sony Pictures hack, CrowdStrike uncovered evidence implicating the government of North Korea and demonstrated how the attack was carried out.

[19] In 2014, CrowdStrike helped identify members of Putter Panda, the state-sponsored Chinese group of hackers also known as PLA Unit 61486.

[22][23] In October 2015, CrowdStrike announced that it had identified Chinese hackers attacking technology and pharmaceutical companies around the time that U.S. President Barack Obama and China's leader Xi Jinping publicly agreed not to conduct economic espionage against each other.

[35] Later that November, CrowdStrike acquired SecureCircle, a SaaS-based cybersecurity service that extends zero trust endpoint security to include data.

[47] The downtime caused a widespread global impact, grounding commercial airline flights, temporarily taking Sky News and other broadcasters offline, and disrupting banking and healthcare services as well as 911 emergency call centers.

[53] On 24 July 2024, CrowdStrike reportedly contacted affected channel partners with apology emails containing Uber Eats gift cards worth $10.

"[59] Comey previously testified in January 2017 that a request for FBI forensics investigators to access the DNC servers was denied, saying "Ultimately what was agreed to is the private company [CrowdStrike] would share with us what they saw.

"[60] In December 2016, CrowdStrike released a report stating that Russian government-affiliated group Fancy Bear had hacked a Ukrainian artillery app.

"[68] In the Trump–Ukraine scandal, Donald Trump, then the president of the United States, held a 25 July 2019, phone call with Volodymyr Zelensky, the president of Ukraine, in which Trump asked Zelensky to look into a conspiracy theory that was being promoted on far-right websites such as Breitbart News and Russian state media outlets such as Russia Today and Sputnik.

[69] The theory held that namely, that the Ukrainian government used CrowdStrike to hack into the Democratic National Committee's servers in 2016 and frame Russia for the crime to undermine Trump in the 2016 presidential election.