Important File Transfer Platform "Kozutumi" Exceeds 3,000 Corporate Users! ~Approximately 3 years and 4 months since official release, supporting companies in abandoning PPAP and strengthening security and compliance~

Important File Transfer Platform "Kozutumi" Surpasses 3,000 Corporate Users

Heartbeats Inc. (Headquarters: Shinjuku-ku, Tokyo; Representative Director: Masanori Fujisaki) is pleased to announce that its important file transfer platform, "Kozutumi," which operates under the vision of "Making it easier and more secure to send and receive important files," has surpassed 3,000 corporate users.

What is Kozutumi?

Kozutumi is an important file transfer platform for businesses that allows for the easy and secure sending and receiving of important files without being dependent on specific "email services" or "storage services."

View Details

Exceeding 3,000 Companies in Approximately 3 Years and 4 Months Since Official Release

The browser-based business file transfer service "Kozutumi" was officially released on November 30, 2022. Following its achievement of 2,000 users in September 2024, it has continued to expand its market share, surpassing 3,000 users in April 2026.

The movement to abolish and reject emails with attached files, which are often entry points for information leaks and cyberattacks, such as "PPAP (sending password-protected ZIP files)," is accelerating among central government ministries and general corporations.

As abandoning PPAP, including measures against malware and ransomware, becomes increasingly crucial for companies of all sizes, "Kozutumi" has been chosen by many businesses for its ease of intuitive introduction and operation, even for companies without an IT department, and its high-level security.

Furthermore, in February 2026, the company officially released its new feature, "Archive Option for Audits," which enables long-term storage of all sent and received files and sets a new standard for audit support, demonstrating its continuous updates to meet the advanced compliance and security demands of its users.

Features of "Kozutumi"

Kozutumi Service Diagram

Versatility Independent of Specific Services: Users can easily and securely send and receive files via their browser without being tied to specific email or storage services.

Simple Operation and Low Cost: With a simple interface that can be mastered without specialized knowledge, it is well-received as an easy-to-implement solution for abandoning PPAP at a low cost.

Guest User Access Available: Even external business partners who have not contracted with "Kozutumi" can safely send and receive important files and large data without the hassle of compression or password generation.

Request for Materials / Free Consultation Session Here

We offer optimal plans tailored to your environment and the number of users.

▷ Important File Transfer Platform "Kozutumi"

https://kozutumi.com/

Heartbeats Inc.

Company Name: Heartbeats Inc. Address: Kosugi Building 5F, 1-28-11 Shinjuku, Shinjuku-ku, Tokyo 160-0022 Representative: Masanori Fujisaki, Representative Director Established: April 2005 URL: https://heartbeats.jp

Heartbeats Inc. operates a "Cloud Acceleration Business" that promotes the reliable and fastest growth of its clients' businesses through IT expertise. The "Cloud Acceleration Division" provides integrated services from planning and advisory to development and operation, based on its strengths in IT infrastructure design, construction, operation, monitoring, and troubleshooting, with a focus on further advancing cloud technology and supporting customer business development. As a new venture, they are also developing the important file transfer platform "Kozutumi," which promotes the abandonment of password-protected ZIP files. They are committed to nurturing emerging talent and contributing to the sustainable development of the entire IT industry to support its overall growth.