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Accidental Data Loss Prevention

Stop Accidental Data Loss On Email

Misdirected emails are the leading cause of data security incidents reported to data protection regulators. Tessian prevents accidental data loss incidents that rule-based data loss prevention (DLP) solutions fail to detect.

Why does accidental data loss matter?


On average, a 1,000-employee organization sends out 800 misdirected emails in a year.


Simple errors like typing in a wrong email recipient or attaching the wrong file containing sensitive data can result in serious consequences. Misdirected emails are a big challenge to enterprises as these are largely under-reported. Accidental data loss through misdirected email and wrong attachments results in loss of trust and reputation, financial and compliance implications.

Why Legacy DLP Solutions Fail to Address The Problem

  • Restricted by Rules

    Rule-based DLP tools detect sensitive data strictly based on predefined data classification policies, filters and dictionaries.

    But, what happens if the sensitive data being shared over email has not been classified, or authorized data is shared with the wrong party? Rules have no way of detecting the right receivers or autocorrect errors.

  • Create More Work for Administrators

    Rule-based approaches that try to limit sharing of legitimate data are restrictive and typically impact productivity due to their high number of alerts.

    For administrators, creating manual rules for every foreseeable use case is not only resource-intensive but can also lead to data blindspots.

  • Deliver Poor User Experiences

    Traditional approaches to accidental data loss have come at the expense of user experience; annoying and unintelligent pop-ups cause alert fatigue and end-user frustrations.

    Tessian only alerts people when a mistake is about to be made. It automatically flags misdirected emails and misattached files in-the-moment.

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Mistakes Happen - But You Don’t Have to Lose Customers Over It.
1 in 3 businesses have lost customers after an employee sent an email to the wrong person. Learn how Tessian Guardian can help your organization detect and prevent accidental data loss.

Tessian’s Intelligent Approach to Accidental Data Loss Prevention

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Prevent Employee Mistakes From Causing Data Loss
Learn how Tessian Guardian can detect and prevent the accidental data loss incidents that legacy DLP solutions fail to spot.