Google has recently introduced a new line of defence for your Gmail inbox, known as RETVec, enhancing its ability to ward off unwanted spam. RETVec, which stands for Resilient and Efficient Text Vectorizer, is essentially a sophisticated tool that boosts Gmail’s capability to detect and filter spam emails.

The craftiness of spammers is well-known, as they often employ tactics like using invisible characters, or ‘LEET’ substitution — for example, replacing “security” with “s3cur1ty”, and deliberately inserting typos to bypass security measures. RETVec, however, is designed to withstand such ploys, reinforcing your inbox against these sly methods.

The methodology behind RETVec involves converting words or phrases into numerical values for more in-depth analysis, enhancing predictions, and identifying word patterns. Think of it as equipping Gmail with an enhanced radar specifically for spam detection.

The implementation of RETVec has already yielded significant results: Gmail has seen a remarkable 38% improvement in spam detection, while simultaneously reducing the rate of legitimate emails mistakenly flagged as spam by almost 20%.

However, it’s important to note that with this heightened security, there might be unintended consequences for businesses that rely on email marketing. It’s crucial to monitor your email analytics to ensure that your communications reach their intended audience without being inadvertently caught by these new filters.

Beyond just improving security, RETVec also scores in efficiency. Google has reported an 83% reduction in the usage of Tensor Processing Units (TPUs) by the model. This translates into less computational demand, faster processing, and is a game-changer for applications that operate at scale and rely on device-based models. It’s a scenario where everyone benefits.

As RETVec fortifies our digital defences against cyber threats, keeping malicious emails at bay and our inboxes clean, it marks a significant step forward in digital security. And for those who don’t use Gmail, there’s good news — it’s expected that other email services, like Microsoft, may soon adopt similar protective measures.

In the interim, should you wish for an expert assessment of your business’s email security strategies, our team is ready to assist.


Tired of Unwanted Emails? You’re Not Alone. With business cybersecurity threats predominantly initiating via email, the stakes are high. Stay tuned for our latest technology update, featuring an innovative tool designed to enhance our digital defences.

Barrie, Ontario