This article was the one interested me because it shares how Ukraine was able to defend against cyberattacks and it's happening at this moment. The hackers use social engineering techniques like phishing emails and opening unknown links. Ukrainian organizations benefited from working closely with U.S. agencies to bolster the cybersecurity of critical infrastructure. The agencies helped scan Ukrainian networks for malware and supported penetration tests that use hacker tools to look for vulnerabilities that can give hackers access to their systems.