Kagisuru Launches Corporate Plan for SMEs — Promoting PPAP Alternative + α Cybersecurity — More Reliable Measures for All Channels
IDEOJ Co., Ltd. has officially launched its new corporate plan, "Team Plan," for the file encryption service "Kagisuru" starting April 1, 2026. This plan helps SMEs move away from PPAP and implement comprehensive shadow IT countermeasures with features like send cancellation, file custody, read history, and group reception pages, all under a fixed-rate system per organization.
📋 Article Processing Timeline
- 📰 Published: May 1, 2026 at 03:08
- 🔍 Collected: April 30, 2026 at 18:31
- 🤖 AI Analyzed: April 30, 2026 at 18:51 (19 min after Collected)
IDEOJ Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; Representative Director: Hiroki Noaki) has officially launched its new corporate plan, "Team Plan," for the file encryption service "Kagisuru," which applies passkey technology, starting April 1, 2026. This plan adopts a fixed-rate system per organization instead of ID-based billing and offers a comprehensive set of features to achieve both a departure from PPAP (password-protected ZIP) and "shadow IT countermeasures" simultaneously. These features include send cancellation, file custody (supporting over 1GB), file read history, and group reception pages.
Kagisuru earned the "No. 1 in Trending Ranking" in the PR Times Technology category (September 2025) and has been certified as a product eligible for support under the Tokyo Metropolitan Small and Medium Enterprise Promotion Agency's New Market Development Support Project for SMEs.
1. Background: "De-PPAP" is not a goal, but a starting line
Since the government announced the abolition of password-protected ZIP files (PPAP) in 2020, there has been a review of file transfer methods via email. However, on-site file exchange is dispersed across multiple channels, not just email, including chat (Slack/Teams), groupware, USB memory, and isolated network environments.
Simply abolishing PPAP does not resolve risks such as:
* Shadow IT where confidential files are shared via chat or personal cloud services.
* Accidental public disclosure or spread of shared links from cloud storage.
* Operational errors due to the complexity of passwords and permission settings.
"De-PPAP" is just the starting line for countermeasures; the true goal is to ensure reliable measures are implemented across all channels.
2. Solutions provided by Kagisuru Team Plan
Kagisuru achieves channel-independent security by encrypting the file itself from beginning to end. The Team Plan provides these features for organizational operation.
(1) Passwords and shared links "do not exist in the first place"
The design eliminates passwords and shared links, which are targets for cyberattacks. When sending, you only need to specify the recipient's email address to create a file that only they can open.
(2) Data is always encrypted, safe on any channel
Encrypted files can be sent securely via any method, including email, chat, groupware, USB memory, and isolated network environments. There is no need to change existing workflows.
(3) Safe to receive, safe even if sent incorrectly
Upon reception, the file can only be unlocked after verifying the correct recipient via email authentication (one-time code) or passkey authentication. Even if a file is sent incorrectly, it can be made unopenable even after the attached file has been delivered (send cancellation function).
3. Main features of the Team Plan
Provides features that address corporate on-site challenges.
* Problem: I sent it by mistake...! → File send cancellation function
You can make the attached file unopenable even after it has been delivered to the recipient. This minimizes damage in case of erroneous transmission.
* Problem: The file is too large to send...! → File custody function
Even large files can be sent via email. Files exceeding 1GB can also be sent. Kagisuru's cloud securely stores only locked files.
* Problem: I want to know if the recipient has opened the file → File read history function
Records "when" and "who" unlocked the file. You can also manage who opened files within your own department, which is useful for confirming delivery and managing progress of important files.
* Problem: I don't want to receive password-protected ZIP files → File reception function
Allows creation of a dedicated page for securely receiving files from external parties. Files are delivered in a locked state. By including the URL of the reception page in email signatures, password-protected ZIPs can be abolished even with business partners.
4. "Group" function to support corporate operations — Unlimited creation
The biggest feature of the Team Plan is the ability to create unlimited convenient "groups." You can design as many groups as needed to match your organization's hierarchy and departmental structure.
* Reception via mailing list: Supports operations where files are sent to the ML address of a department/team.
* Create group reception page: Issue a dedicated page for departments to receive files from external parties.
* Share file read history within a group: Share "who opened it and when in our department" among members.
* Administrator functions: Manage groups and members, and grasp usage status.
Since operations can be segmented for units handling sensitive information, such as accounting, human resources, legal departments, sales offices, and branches, it balances internal control with ease of use for the front lines.
5. Why a "fixed-rate system"? — Easier for SMEs to get approval
Keywords: Cybersecurity, File Encryption, SME, PPAP, Shadow IT, Data Security, Fixed Rate, Passkey, Japan
Kagisuru earned the "No. 1 in Trending Ranking" in the PR Times Technology category (September 2025) and has been certified as a product eligible for support under the Tokyo Metropolitan Small and Medium Enterprise Promotion Agency's New Market Development Support Project for SMEs.
1. Background: "De-PPAP" is not a goal, but a starting line
Since the government announced the abolition of password-protected ZIP files (PPAP) in 2020, there has been a review of file transfer methods via email. However, on-site file exchange is dispersed across multiple channels, not just email, including chat (Slack/Teams), groupware, USB memory, and isolated network environments.
Simply abolishing PPAP does not resolve risks such as:
* Shadow IT where confidential files are shared via chat or personal cloud services.
* Accidental public disclosure or spread of shared links from cloud storage.
* Operational errors due to the complexity of passwords and permission settings.
"De-PPAP" is just the starting line for countermeasures; the true goal is to ensure reliable measures are implemented across all channels.
2. Solutions provided by Kagisuru Team Plan
Kagisuru achieves channel-independent security by encrypting the file itself from beginning to end. The Team Plan provides these features for organizational operation.
(1) Passwords and shared links "do not exist in the first place"
The design eliminates passwords and shared links, which are targets for cyberattacks. When sending, you only need to specify the recipient's email address to create a file that only they can open.
(2) Data is always encrypted, safe on any channel
Encrypted files can be sent securely via any method, including email, chat, groupware, USB memory, and isolated network environments. There is no need to change existing workflows.
(3) Safe to receive, safe even if sent incorrectly
Upon reception, the file can only be unlocked after verifying the correct recipient via email authentication (one-time code) or passkey authentication. Even if a file is sent incorrectly, it can be made unopenable even after the attached file has been delivered (send cancellation function).
3. Main features of the Team Plan
Provides features that address corporate on-site challenges.
* Problem: I sent it by mistake...! → File send cancellation function
You can make the attached file unopenable even after it has been delivered to the recipient. This minimizes damage in case of erroneous transmission.
* Problem: The file is too large to send...! → File custody function
Even large files can be sent via email. Files exceeding 1GB can also be sent. Kagisuru's cloud securely stores only locked files.
* Problem: I want to know if the recipient has opened the file → File read history function
Records "when" and "who" unlocked the file. You can also manage who opened files within your own department, which is useful for confirming delivery and managing progress of important files.
* Problem: I don't want to receive password-protected ZIP files → File reception function
Allows creation of a dedicated page for securely receiving files from external parties. Files are delivered in a locked state. By including the URL of the reception page in email signatures, password-protected ZIPs can be abolished even with business partners.
4. "Group" function to support corporate operations — Unlimited creation
The biggest feature of the Team Plan is the ability to create unlimited convenient "groups." You can design as many groups as needed to match your organization's hierarchy and departmental structure.
* Reception via mailing list: Supports operations where files are sent to the ML address of a department/team.
* Create group reception page: Issue a dedicated page for departments to receive files from external parties.
* Share file read history within a group: Share "who opened it and when in our department" among members.
* Administrator functions: Manage groups and members, and grasp usage status.
Since operations can be segmented for units handling sensitive information, such as accounting, human resources, legal departments, sales offices, and branches, it balances internal control with ease of use for the front lines.
5. Why a "fixed-rate system"? — Easier for SMEs to get approval
Keywords: Cybersecurity, File Encryption, SME, PPAP, Shadow IT, Data Security, Fixed Rate, Passkey, Japan