A slew of cyberattacks hit Japanese companies in September, exposing the data of millions and prompting calls for security checks, as AI lowers hacking barriers (Sarah Hilton/Bloomberg)

In September, Japanese companies experienced a series of cyberattacks that exposed the data of millions of individuals. These incidents have led to calls for enhanced security checks, particularly as artificial intelligence (AI) is perceived to be lowering the barriers to hacking. The cascade of attacks has prompted government intervention, urging companies to review their cybersecurity measures.