Implementing a zero trust security approach is critical to avoid the types of major IT disruptions and massive data compromises seen in recent cyberattacks that affected the healthcare, public health and government sectors, said Clinton McCarty, CISO at National Government Services.

Red teaming is not effective for evaluating the efficacy of preventative or detective security controls, said Jared Atkinson of Specter Ops, but purple teaming is. Purple teaming as "the evaluation of security control efficacy through atomic testing, using deliberately selected test cases."

Developers are using more and more open-source code because they "want to move fast," said Cycode's Lotem Guy. But the speed of development and the continuous deployment that follows means security teams have to catch up to the fast-moving development life cycle.

Acronis President Gaidar Magdanurov discusses the need for immutable backups in the current threat landscape and highlights the benefits of integrating security measures with backup systems to facilitate automated recovery from ransomware attacks and minimize downtime.

Payment fraud is the top risk to companies across the globe. Business email compromise is continually on the rise. Johnny Deutsch, co-founder and CEO of B2B payments protection company Creednz, discusses the need to integrate security into financial processes.

Artificial intelligence technologies offer tremendous promise in healthcare, but it's crucial for organizations to carefully assess the complex data privacy concerns involved with different types of AI products and deployments, said Karen Habercoss, chief privacy officer at UChicago Medicine.

The chaos experienced by thousands of healthcare organizations in the wake of the massive Change Healthcare cyberattack and IT outage in February is proof that most organizations are simply unprepared for such devastating incidents, said Bryan Chnowski, deputy CISO at Nuvance Health.

Many healthcare organizations have discovered major gaps in business operations preparedness - the ability to quickly rebound from major IT disruptions, such as those caused by the Change Healthcare cyberattack. Jigar Kadakia, CISO of Emory Healthcare, said it's time to come up with a Plan B.

Healthcare is increasingly complex and interconnected, and the push to exchange more digital patient information among providers adds to the threat of busy staff falling victim to phishing and other scams that can jeopardize data, said Krista Arndt, CISO of United Musculoskeletal Partners.

It's critical for CISOs to study what went wrong in major ransomware IT disruptions and breaches hitting the healthcare sector and to look closely within their own organizations for similar gaps or vulnerabilities, said Michael Prakhye, CISO of Adventist HealthCare.