arijose

This plugin was created to stop human spammers. Captcha or other image methods do not work when an actual person is spamming your site. This plugin helps to resolve this issue. It allows your to create a custom question and answer on the registration page of a wordpress site that only the users in your demographic can answer. An example (and the reason I created this plugin) is a school track website. I would get up to 3 to 5 bogus registrations a day. I added this plugin with the question “What city is your school in?” and that number went to 0. Someone in another area is not going to know this question, however anyone who would/should be registering would defintely know the answer. This plugin will not work for everyone but it certainly was a perfect fit for me and I know it will help others too.

ARS Reg Secure

This plugin helps block bogus registrations by allowing a custom registration field and answer.

fraudgrade

By default, WordPress is an extremely secure system. However, it is also open to an enormous amount of vulnerabilities which are disclosed publicly on numerous different websites as they are found. That’s where FraudGrade comes in, to save you from potential WordPress exploits and spam.
Since threats are usually sent from behind an anonymizer such as a proxy server or Datacenter IP, the FraudGrade Fraud Detection and Prevention plugin can easily mitigate these risks. In addition to securing a WordPress website against 0-Day Exploits the plugin can also easily mitigate most types of hacking attempts via brute force, CSRF, LFI, SQLi, XSS and etc.
The plugin can also be used to deter most types of spam such as comment spam, xml-rpc spam, admin area spam, login attempt spam and etc. By clicking just a few checkboxes you can have your site secured in less than 5 minutes.
If you are having a high rate of spam and other fraudulent activities from certain countries the plugin will prove useful in your scenario. Configure any and all countries to be blocked from reaching your WordPress installation and even redirect them to an entirely different URL if required.
Detect and block blacklisted IPs which have been associated with online fraudsters. Checking over 50 DNSBL’s for issues such as malware distribution, hacking, credit card fraud, ransomware, spamming, botnets, and many other types of cybercrime activities and abuse.
FraudGrade deploys Artificial Intelligence and Machine Learning with Big Data to accurately assess the risk of any user worldwide on desktop and mobile browsers.
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<a href="https://www.fraudgrade.com/" rel="nofollow ugc">Fraud Detection and Prevention Services by FraudGrade</a>

FraudGrade

Protect Wordpress from hackers, bots and general bad users. Block connections from Proxies, VPN, Tor, Datacenters and blacklisted IPs and even block v …

ARS Reg Secure vs FraudGrade