Senpai Software – Two-factor authentication (2FA) with a key file
Get strong protection against brute force attacks with unique two-factor authentication.
Consider an alternative
Senpai Software shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites, is rated 5/5 and was last updated 3 years ago, and scores 30/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 2 years
- Only tested up to WordPress 6.4 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Senpai Software stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| 2FA | >100 |
| Brute Force | >100 |
| disable xml-rpc | >100 |
| limit login attempts | >100 |
| two factor authentication | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 3 reviews
About Senpai Software
From the official readme · v2.0.1Description
THE MOST UNIQUE TWO-FACTOR AUTHENTICATION METHOD
This plugin gives you the ability to turn any file on your computer into a unique key which you will use to access the admin area.
The plugin only works using HTTPS!
Properties
- File is not downloaded or stored physically on the site.
- The plugin does not create additional security risks.
- Plugin code does not create additional load on the site.
- Intuitive interface.
- Provides the maximum level of protection against brute force attacks. Even if a hacker has access to your computer, it will be extremely difficult for him to guess which file is the key.
- Any file can be used as a key, for example: photo, video, text document, song, operating system system file, whatever…
- File size up to 1 GB.
- Limit Login Attempts.
- Disable XML-RPC.
Keep in mind that if you change the contents of the file selected as a key, you will not be able to access the admin area.
Frequently asked questions
Where are the settings?
Settings are located in the edit section of your profile
What should I do if I have lost my key file?
If you are not an administrator. Ask your site administrator to turn off two-factor authentication for your profile. After that, you will be able to log in using only your login and password, and then select a new file. If you are administrator. * Go to your website database. * Find usermeta table. * Find the row where ‘user_id’ = your user ID, and ‘meta_key’ = ‘senpai_software_2fa_status’. * Change the value of the ‘meta_value’ field to ‘disable’. * Now you can use only login and password, and then choose a new key file.
Changelog
Disable authentication before update 1.0.1. After updating the plugin, update your key file.
2.0.1
- Added namespace
2.0.0
- Added ability to disable XML-RPC.
- Added ability to set restrictions for login attempts.
1.0.2
- Misc: Add deactivation function.
1.0.1
- Bug Fix: Fixed an issue where an admin couldn’t change another user’s settings.
- Misc: Replaced wp_hash with sha1.
1.0
- Release this plugin to the masses!
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best Senpai Software alternatives
All 2FA plugins →
FAQ
Senpai Software: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 5, 2026
Is Senpai Software free?
Yes. Senpai Software is free to download and use from the official WordPress.org plugin directory.
Is Senpai Software safe to use in 2026?
Senpai Software shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites, is rated 5/5 and was last updated 3 years ago, and scores 30/100 on our health check.
How many websites use Senpai Software?
Senpai Software is active on 10+ WordPress websites and has been downloaded 3,754 times since it launched in March 2023. It was downloaded 48 times in the last 30 days.
Does Senpai Software work with WordPress 7.1?
Senpai Software is officially tested up to WordPress 6.4.12, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does Senpai Software need?
Senpai Software requires PHP 5.6 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Senpai Software last updated?
The latest version, 2.0.1, was released on November 8, 2023 (3 years ago).
Who makes Senpai Software?
Senpai Software is developed and maintained by Serhii Kolomiitsev.
What are the best alternatives to Senpai Software?
The most popular alternatives to Senpai Software are Wordfence Security (5M+ installs), Really Simple Security (3M+ installs) and Limit Login Attempts Securi… (1M+ installs).
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