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Posts Tagged ‘digital signatures’

Stopping Forged Email 4: Your Last Resorts

Wednesday, March 4th, 2015

In previous posts we have examined how hackers and spammers can send forged email and how it can be extremely difficult to differentiate these messages from legitimate messages.  We have looked at the various common techniques for anti-fraud such as SPFDKIM, and DMARC and seen that, while these technologies can help a lot, they all have limitations; they all require strict and proper setup by the owner of the purported sender’s domain, and they must be well supported by your own spam filtering system.

Yet even with these technologies, it’s not hard in many cases for a determined attacker to send you a forged, fraudulent email message that still looks and feels legitimate.

What else can you do to validate email messages and protect yourself from phishing or social engineering attacks?

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Digital Signatures in Email

Tuesday, May 24th, 2011

Many of our customers require that electronic digital signatures be added to outbound email messages.  Here we discuss what these are, what they do for you, and how to add them using LuxSci SecureLine email encryption.

What are Digital Signatures?

In short, adding a digital signature to an email message allows:

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