A Look at the Origins of Network Email

The history of long distance communication is a fascinating, and huge, subject. I'm going to focus just on the history of network email -- otherwise I'm going to get distracted by AUTODIN and semaphore and facsimile and all sorts of other telegraphy. Electronic messaging between users on the same timesharing computer was developed fairly soon after time-sharing computer systems were available, beginning around 1965 -- including both instant messaging and mail. more

More Denial of Service Attacks

There are quite a lot of NTP-amplified denial of service attacks going around at the moment targeting tech and ecommerce companies, including some in the email space. What does NTP-amplifed mean? NTP is "Network Time Protocol" - it allows computers to set their clocks based on an accurate source, and keep them accurate. It's very widely used - OS X and Windows desktops typically use it by default, and most servers should have it running. more

Bit.ly Gets You Blocked

URL shorteners, like bit.ly, moby.to and tinyurl.com, do three things... Making URLs shorter was their original role, and it's why they're so common in media where the raw URL is visible to the recipient -- instant messaging, twitter and other microblogs, and in plain text email where the "real" URL won't fit on a single line. From the moment they were invented they've been used to trick people to click on links to pages they'd rather not visit... more

Defending Against the Hackers of 1995

Two factor authentication that uses an uncopyable physical device (such as a cellphone or a security token) as a second factor mitigates most of these threats very effectively. Weaker two factor authentication using digital certificates is a little easier to misuse (as the user can share the certificate with others, or have it copied without them noticing) but still a lot better than a password. Security problems solved, then? more

Real. Or. Phish?

After Epsilon lost a bunch of customer lists, I've been keeping an eye open to see if any of the vendors I work with had any of my email addresses stolen -- not least because it'll be interesting to see where this data ends up. Recently I got mail from Marriott, telling me that "unauthorized third party gained access to a number of Epsilon's accounts including Marriott's email list."... more