If you're getting spam registration from malicious entities / bots, you can stop this by adding a Captcha or Antispam plugin to your registration.
The majority of captcha plugins are also compatible with B2BKing's B2B registration.
We have specifically tested B2BKing with the following captcha plugin and we can confirm they work together correctly:
Advanced noCaptcha & invisible Captcha (v2 & v3)
Depending on the mechanism used by the captcha plugin, it will add a verification mechanism, the most common one being the 'I'm not a robot' check:
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