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Next Generation Data Loss Prevention (DLP) with LuxSci Secure Email

Tuesday, September 29th, 2015

Data Loss Prevention (DLP) describes a plan for companies to control the sending of sensitive data.  E.g. this can include controls to stop the flow of sensitive data or to ensure that sensitive data is always well-encrypted (for compliance) when sent.

In the context of email, DLP is usually achieved through the following formula:

  1. Construct a list of words, phrases, or patterns that, if they are present in an email, signify an email message that may contain sensitive information.
  2. Have all outbound email scanned for these words, phrases, or patterns
  3. For messages that match, take action:
    1. Block: Refuse to send the message, or
    2. Encrypt: Ensure that the message is encrypted
    3. Audit: (and maybe send a copy of the message to an “auditor”)

This classic DLP system is available through many email providers and has been available at LuxSci for many years as well. However, it does have a glaring limitation — no matter how complete and complex your DLP pattern list is, it is almost certain that some messages containing sensitive information will not quite match (or the information will be embedded in attachments that can’t be searched properly).  If they do not match, then they will escape in a way that may be considered a breach.

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Tags: data loss prevention, dlp, encrypt, escrow, hipaa, pgp, s/mime, tls
Posted in LuxSci Library: HIPAA, LuxSci Library: Security and Privacy
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How do you know if someone has read your email message?

Friday, July 26th, 2013

Has your recipient read the email message that you sent to them?

Has anyone else read the email messages you sent or saved in your online email folders?

We are often asked how customers can verify if an email that has been sent has actually been read or if they can detect if messages have been covertly read (e.g., by the NSA). The quick answer is that:

  1. You generally can never know unless you plan on it ahead of time or use a system that includes read tracking as a feature.
  2. Concerning your ISP or the government reading emails, you cannot ever know. All you can do is implement encryption mechanisms to prevent them from reading the messages altogether.

In this article, we will discuss what measures you can take and how effective they are for determining if an email message has been read. The simplest and most generally available methods are the least reliable.

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Tags: Disposition-Notification-To, email filtering, email message, escrow, images, read receipt, secureline, web bug, web bugs
Posted in Business Solutions, LuxSci Library: The Technical Side of Email
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Encrypting Sent Email — An Often Overlooked Part of End-to-End Encryption

Wednesday, September 26th, 2012

You are proactive and security conscious.  You use end-to-end encryption software, like PGP or S/MIME or LuxSci SecureLine, to send your sensitive messages to their destinations, ensuring that the message content is encrypted the entire way … because otherwise, email is just plain insecure.

Oh – but what about the copies of these messages saved to your “Sent Email” folders?  Are they encrypted or secure?  Should they be?

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Tags: backups, certificate, draft, encryption, escrow, hard drive, insecure, pgp, s/mime, secureline, sent email
Posted in LuxSci Library: HIPAA, LuxSci Library: Security and Privacy
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Can You Make Your Email More Secure?

Wednesday, August 26th, 2009

LuxSci offers many options for email security. Whether it is PGP, S/MIME, LuxSci’s SecureLine end-to-end email encryption, or forced secure logins over SSL, LuxSci can guide you in making the best choices for secure and safe email.

End-to-end email encryption is one way to ensure that your email can only be read by the intended recipients. SSL and TLS connections are secure, but only to a point. While you can ensure that your users connect securely to LuxSci’s servers, who is to say that your recipient’s connection is secure? With LuxSci SecureLine, even if the recipient’s connection isn’t secure, you can be assured that your message is sent securely and can only be read by whom you intended.

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Tags: end-to-end email encryption, escrow, pgp, s/mime, safe email, secure, secureline
Posted in Business Solutions
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Reliable Read Receipts with SecureLine Escrow

Tuesday, April 14th, 2009

Read receipt requests are generally an extremely unreliable way to find out if your recipient has read an email messages that you have sent to him/her.

Why? Because

  • Some email programs do not support read receipts, and thus messages viewed with these would never send you a notice that the message was read.
  • Programs that do support read receipts allow the user to respond to them “always”, “never”, or “ask each time” … with “asking each time” being the default.  As a result, users often will decline your request for a receipt that you have read the message.

However, when messages are sent via LuxSci’s SecureLine Escrow encryption service, read receipts are guaranteed to work.

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Tags: delivery notice, encrypted, escrow, notice, read receipt, retract, retracting, secureline
Posted in New Feature Announcements
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