HENNGE Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; President and CEO: Kazuhiro Ogura) has compiled and analyzed the usage status of PPAP (※1) in business emails based on usage data from its cloud security service, "HENNGE One." The results revealed that the usage ratio of PPAP has approximately halved in the past two years, now standing at around 6%. This indicates that the move away from PPAP, after being a temporary trend, has now become the new "standard" for business emails. ※1 This is a common term for a method of sharing files via email by sending a password-protected ZIP file and its password separately. While widely used in Japan, concerns about its insufficient security and convenience have led to an acceleration of "PPAP abolition" efforts, where files are shared through alternative means, primarily by government agencies and corporations. ■ Background of the Survey: Accelerating "PPAP Abolition" and Government Initiatives In recent years, the vulnerabilities of PPAP have become a concern due to the increasing sophistication of cyberattacks. Since the Cabinet Office and the Cabinet Secretariat announced the abolition of PPAP in 2020, many companies have been considering alternative methods. Furthermore, in May 2025, the Financial Services Agency issued a notification (※2) urging related organizations to move away from PPAP, stating that "sending password-protected files should fundamentally be avoided, and encrypting the communication path of emails itself is fundamental." These government-led efforts to enhance security are accelerating, making the establishment of a secure file-sharing environment an urgent task. ※2 Quote: Financial Services Agency "Main Points Raised by the Financial Services Agency in Opinion Exchange Meetings with Industry Groups [Held on May 13, 2025 (Opinion Exchange Meeting with Major Banks)]" (https://www.fsa.go.jp/common/ronten/202505/01.pdf) ■ "PPAP Abolition" Evolution Seen Through Data: PPAP Usage Ratio Halved in the Past 2 Ye