Skip to content
Sites

How to make my form submissions secure from spammers?

TABLE OF CONTENTS How to secure your forms? 1. Use CAPTCHA to Prevent Spam 2. Validate Email and Phone Numbers 3. Restrict SMS Permissions Based on…

2 min read437 words3 explained images
View as markdownOpen in ClaudeOpen in ChatGPT
Each image has a one line explanation. Switch to full detail for the step it belongs to, the fields and buttons involved, examples and the whole procedure.
On this page
  1. 1. Use CAPTCHA to Prevent Spam
  2. 2. Validate Email and Phone Numbers
  3. 3. Restrict SMS Permissions Based on Geography

Video 1 Open in a new tab

TABLE OF CONTENTS

How to secure your forms?

Our forms product includes built-in protections against fake submissions, leveraging multiple security signals like IP addresses, geographic data, and other advanced parameters. Additionally, we use Cloudflare's DDoS protection to safeguard your forms and submissions.

However, for enhanced security, consider implementing the following best practices while designing your forms.

1. Use CAPTCHA to Prevent Spam

Adding a CAPTCHA is one of the most effective ways to block scammers and spammers from submitting large volumes of fake entries. This helps prevent:

  • The creation of fake contacts that can clutter your CRM.
  • Excessive automated form submissions that overload your infrastructure.
  • Increased costs from automated SMS, email, or other communication updates triggered by fake entries.

To add captcha to you form navigate to forms > custom fields > captcha.

1. Use CAPTCHA to Prevent Spam (image 1 of 3) What this shows To add captcha to you form navigate to forms > custom fields > captcha. What this shows Illustrates the "1. Use CAPTCHA to Prevent Spam" section of "How to make my form submissions secure from spammers?". This screenshot appears in the "1. Use CAPTCHA to Prevent Spam" section of "How to make my form submissions secure from spammers?". The text alongside this image reads: To add captcha to you form navigate to forms > custom fields > captcha. Immediately after, the guide continues: This is especially useful when you have automations setup to send SMS, email or other form of communication updates. Else you may experience increased costs due to fake contacts being created in your CRM by bad actors. Image 1 of 3 What this coversTo add captcha to you form navigate to forms > custom fields > captcha. Next stepThis is especially useful when you have automations setup to send SMS, email or other form of communication updates. Else you may experience increased costs due to fake contacts being created in your CRM by bad actors.
All 3 steps in this procedure
  1. The creation of fake contacts that can clutter your CRM.
  2. Excessive automated form submissions that overload your infrastructure.
  3. Increased costs from automated SMS, email, or other communication updates triggered by fake entries.
 
This is especially useful when you have automations setup to send SMS, email or other form of communication updates. Else you may experience increased costs due to fake contacts being created in your CRM by bad actors.

2. Validate Email and Phone Numbers

Ensure only legitimate users submit forms by enabling email and phone number validation. This helps:

  • Block temporary, invalid, or fake contact details.
  • Prevent fraudulent entries from affecting your marketing and sales data.
  • Reduce unnecessary outreach costs.
2. Validate Email and Phone Numbers (image 2 of 3) What this shows Block temporary, invalid, or fake contact details. What this shows Illustrates the "2. Validate Email and Phone Numbers" section of "How to make my form submissions secure from spammers?". This screenshot appears in the "2. Validate Email and Phone Numbers" section of "How to make my form submissions secure from spammers?". The text alongside this image reads: Block temporary, invalid, or fake contact details. Prevent fraudulent entries from affecting your marketing and sales data. Reduce unnecessary outreach costs. Immediately after, the guide continues: If your form triggers SMS communications, configure SMS geo-permissions to prevent messages from being sent to high-risk regions. Full Article - Geo Permissions Issues with Twilio. Image 2 of 3 What this coversBlock temporary, invalid, or fake contact details. Prevent fraudulent entries from affecting your marketing and sales data. Reduce unnecessary outreach costs.
Buttons and menus referenced email and phone number validation
Next stepIf your form triggers SMS communications, configure SMS geo-permissions to prevent messages from being sent to high-risk regions. Full Article - Geo Permissions Issues with Twilio
All 3 steps in this procedure
  1. Block temporary, invalid, or fake contact details.
  2. Prevent fraudulent entries from affecting your marketing and sales data.
  3. Reduce unnecessary outreach costs.
2. Validate Email and Phone Numbers (image 3 of 3) What this shows Block temporary, invalid, or fake contact details. What this shows Illustrates the "2. Validate Email and Phone Numbers" section of "How to make my form submissions secure from spammers?". This screenshot appears in the "2. Validate Email and Phone Numbers" section of "How to make my form submissions secure from spammers?". The text alongside this image reads: Block temporary, invalid, or fake contact details. Prevent fraudulent entries from affecting your marketing and sales data. Reduce unnecessary outreach costs. Immediately after, the guide continues: If your form triggers SMS communications, configure SMS geo-permissions to prevent messages from being sent to high-risk regions. Full Article - Geo Permissions Issues with Twilio. Image 3 of 3 What this coversBlock temporary, invalid, or fake contact details. Prevent fraudulent entries from affecting your marketing and sales data. Reduce unnecessary outreach costs.
Buttons and menus referenced email and phone number validation
Next stepIf your form triggers SMS communications, configure SMS geo-permissions to prevent messages from being sent to high-risk regions. Full Article - Geo Permissions Issues with Twilio
All 3 steps in this procedure
  1. Block temporary, invalid, or fake contact details.
  2. Prevent fraudulent entries from affecting your marketing and sales data.
  3. Reduce unnecessary outreach costs.

3. Restrict SMS Permissions Based on Geography

If your form triggers SMS communications, configure SMS geo-permissions to prevent messages from being sent to high-risk regions. Full Article - Geo Permissions Issues with Twilio

Managing Geo-Permissions in LC Phone - GHL Customer Care's LC Phone system manages SMS permissions at the sub-account level. By default, most countries are enabled except for high-risk regions. If you need to modify geo-permissions, contact GHL Customer Care Support with your Location ID and the list of countries to enable or disable texting and calling.

Certain high risk countries are mentioned below that we keep turned off by default

  1. Somalia (+252)
  2. North Korea (+850)
  3. Cuba (+53)
  4. Syria (+963)
  5. Iran (+98)
  6. Sudan (+249)
  7. Liberia (+231)
  8. Zimbabwe (+263)
  9. Afghanistan (+93)
  10. Yemen (+967)
Best Practice - For optimal security it is a good idea to ONLY ENABLE SMS permission for regions where your actual customers are located. Be cautious when activating SMS in high-risk areas to prevent fraudulent activities.

Key Takeaways

Enhancing form security protects your business from spam, fake contacts, and unnecessary costs. While built-in protections help, adding CAPTCHA, email/phone validation, and geo-restricted SMS permissions further strengthens security. Implement these best practices to ensure only genuine submissions reach your system.

Was this guide helpful?

Related guides

Exporting Form answers to Google Sheets1 min readSticky Contact in Forms, Surveys, and Calendars3 min read · 12 imagesGain Consent With Custom Checkboxes In Forms (GDPR Compliance)2 min read · 6 imagesConditional Logic V2 in Forms and Surveys!5 min read · 6 images