Security Matters When Choosing Your Bulk SMS Provider

Your Data Security is very Important

Cybersecurity is a very real threat for modern businesses… Your customer data is your business, so security can never be compromised. Different SMS providers offer varying levels of security.


What is SSL?

SSL is an acronym for Secure Sockets Layer. It's the little green padlock in the browser URL bar. SSL creates an encrypted connection between your web server and your visitor's web browser. This creates a private connection in which information can be transmitted just between your web server and your visitor's web browser. This private connection eliminates the possible problems of data tampering, eavesdropping or message forgery.

Why does Voodoo SMS insist on using SSL on EVERY Page?

We are always transmitting personal information on our site, like personal mobile phone numbers. This means that your SECURITY is paramount for us. You deserve to sleep carefree at night in the comfort of knowing that your customers information is in safe hands with Voodoo SMS. Every single page on has a little green padlock in the browser URL bar, constantly assuring you of our security

Cyber Essentials

Voodoo SMS are proud to be awarded Cyber Essentials certification, a government-backed scheme to assist businesses in maintaining cyber security standards.

Cyber Essentials is a requirement for government contracts awarded through the GCloud framework and has been developed as part of the UK’s National Cyber Security Programme. Through this, Voodoo SMS have also been awarded certification of IASME Security Standards. Both certificates ensure that security is at the forefront of Voodoo SMS’ best practice policy throughout the company.

More information can be found here:

What further actions do Voodoo SMS take to ensure your security?

Understanding that the security of your data is paramount, we go above and beyond the call of duty to ensure your peace of mind. We undertake regular penetration testing to ensure our cybersecurity contains no points-of-weakness and fully complies to PCI DSS standards. Also, we choose UKFast for our managed servers - offering you round-the-clock protection behind a Cisco ASA Firewall.

Surely all other major bulk SMS providers have secure websites?

It may come as a surprise to many people that a lot of the major bulk SMS providers don't actually have websites that are as secure as they could be. Some major providers don’t have an encrypted connection on their site at all, which means that the information you transmit to their site isn't actually private. A lot of the major providers have encrypted connections, but with an Obsolete Cipher Suite. Very few major bulk SMS providers have an Extended Validation Certificate, Voodoo SMS are one of few.


To Compare the security of all the major providers of bulk SMS, we are using stats from on a scale of 0-100, with 100 being the best and 0 being the worst result. The overall mark is a grade, A being the best and F being the worst.

Company Extended Validation Certificate Certificate Protocol Support Key Exchange Cipher Strength Overall Grade
Voodoo SMS ✔️ 100 100 90 100 A+
Mediaburst 100 100 90 90 A+
TextMarketer 100 95 90 90 A
Text Anywhere 100 95 90 90 A
2 SMS ✔️ 100 95 90 70 B
Red SMS 100 100 90 90 A+
Esendex 100 95 90 90 A
Kapow 100 50 70 70 C
Text Magic 100 95 90 90 A+
Cosmic SMS 100 100 90 90 A
Textlocal ✔️ 100 100 90 90 A
SMS2Email 100 0 70 70 F
Textvertising 100 0 70 70 F
AQL 100 95 70 90 B
IntelliSMS 100 95 90 90 A
Intellisoftware 100 95 90 90 A
Boom SMS 100 95 90 90 B

Extended Validation Certificate recruiter

The highest class of SSL. Don't get this confused with a standard certificate!

Protocol Support

The way a server supports certain protocols.

Key Exchange

Any method in cryptology. This creates an algorithm in which secure data can be transmitted between two parties.

Cipher Strength

The strength of the encrypted connection; basically the strength of the padlock that protects your precious information.