The Signal Blog

Note on OpenSSL CVE-2014-0160 security notice

Yesterday, the OpenSSL Project announced in notice CVE-2014-0160 that certain versions of its network software are susceptible to a flaw that could compromise encrypted communications between web servers and web client software such as browsers. This issue has been covered widely in the press as the Heartbleed vulnerability. While Signal does employ OpenSSL software, we can confirm ... keep reading →

Building Social Communities: You Get Out What You Put In

In his recent post about using social media to find new customers, Robert Waddington stated an unpopular truth: "The advent of social media has created more work for the business owner, not less!” Who likes more work? And wait a minute… isn’t the benefit of social media that it can amplify your message in ways ... keep reading →

Q&A: How to (Properly!) Gain Followers

We recently took the somewhat controversial stance that 'follower count matters.' Conventional wisdom these days places less importance on the size of your social community, and more on the quality of engagement that occurs within the community. We agree! And yet — follower count is still important because a growing community is the sign of a ... keep reading →

Introducing the Subscribe Button

Our newest feature makes it easier than ever to get a great-looking, space-saving opt-in form on your site. Say goodbye to embedding HTML; meet our new Subscribe Button.  Want to see it in action? Look right there in our sidebar. (Subscribe to our newsletter if you're so inclined…) Here's a screenshot for posterity: As you can see, ... keep reading →

Announcing SMS support in Spain

Good news for our international friends, we just released beta support for two-way text messaging in Spain. Connectivity in Spain is immediately available to Signal customers, with fees of $0.01 per inbound message and $0.08 per outbound message. If you're interested in running a program in Spain, just reach out to the Signal support team ( and we'll get ... keep reading →

Follower Count Isn’t a Vanity Metric

Follower count is no indication of social marketing success. Audience size doesn’t prove influence. Anyone can gain followers. You’ve heard it, we’ve heard it.  It’s true. However. Follower count will always be an important metric for businesses for one simple, economic reason: your goal with social media is to encourage new and existing customers to ... keep reading →

Dashboard Updates Provide Better Visibility into Your Marketing Activity

With an eye towards making it easier to manage your digital marketing efforts, we’ve just released some dashboard updates to your Signal account. What's different? Quick links A new left rail provides quick links to your messages, content, promotions and offers. We’ve heard that it can be difficult to remember where your activities ‘live’ in ... keep reading →

How Did People Subscribe? Now You Know.

Understanding how subscribers joined your list helps you determine which subscription calls to action are converting. Armed with this information, you can work to replicate your success, or fine-tune methods that need improvement. Thanks to our latest update to Signal, you’ll soon have this insight at your fingertips. As of last week, we’re tracking subscriptions ... keep reading →

Introducing Antenna for iPad

We’re thrilled to unveil Antenna, our new iPad app which makes it even easier for you to add subscribers to your Signal account. With Antenna you can quickly build a signup form to collect email newsletter and text message subscriptions in-store, at events, or anywhere you take your iPad. It works flawlessly when no WiFi ... keep reading →

Scheduled Maintenance Wednesday December 18th at 11:59 PM CDT

The Signal application and messaging will be unavailable for one hour starting at 11:59 PM Central on Wednesday, December 18, 2013. We will be performing system maintenance on our infrastructure, which will help us improve performance and reliability. Please email our support team ( if you have any questions.