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E-mail security tips... :: Archived
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Offline Offline
Joined: Jan 21, 2005
Posts: 6989
Location: Central Illinois, USA
PostPosted: Tue Nov 18, 2008 2:48 pm
Post subject: E-mail security tips...

The need for computer security seems to be a never ending battle between the 'not-so-savory' computer users and ourselves. This is an article about Email security and some tips to keep your information YOUR information. Good tips IMO and something all of should be aware of as computer users... Wink

- Chad Perrin- Tech Republic
There’s a lot of information out there about securing your e-mail. Much of it is advanced and doesn’t apply to the typical end user. Configuring spam filters such as SpamAssassin, setting up encrypted authentication on mail servers, and e-mail gateway virus scanner management are not basic end-user tasks.

When one can find end-user e-mail security tips, they’re usually specific to a single mail client or mail user agent such as Microsoft Outlook, Mozilla Thunderbird, or Mutt. This sort of information is of critical importance to many users of these applications, but there are few sources of more general security information for e-mail users that aren’t specific to a given client application.

The following is a short list of some important security tips that apply to all e-mail users — not just users of a specific application. They are listed in the order one should employ them, from the first priority to the last. This priority is affected not only by how important a given tip is, but also by how easy it is to employ; the easier something is to do, the more likely one is to actually do it and move on to the next tip.

1. Never allow an e-mail client to fully render HTML or XHTML e-mails without careful thought. At the absolute most, if you have a mail client such as Microsoft Outlook or Mozilla Thunderbird that can render HTML e-mails, you should configure it to render only simplified HTML rather than rich HTML — or “Original HTML” as some clients label the option. Even better is to configure it to render only plain text. When rendering HTML, you run the risk of identifying yourself as a valid recipient of spam or getting successfully phished by some malicious security cracker or identity thief. My personal preference is, in fact, to use a mail user agent that is normally incapable of rendering HTML e-mail at all, showing everything as plain text instead.

2. If the privacy of your data is important to you, use a local POP3 or IMAP client to retrieve e-mail. This means avoiding the use of Web-based e-mail services such as Gmail, Hotmail, and Yahoo! Mail for e-mail you wish to keep private for any reason. Even if your Webmail service provider’s policies seem sufficiently privacy-oriented to you, that doesn’t mean that employees won’t occasionally break the rules. Some providers are accused of selling e-mail addresses to spamming “partners.” Even supposedly security-oriented Webmail services such as Hushmail can often be less than diligent in providing security to their users’ e-mail.

3. It’s always a good idea to ensure that your e-mail authentication process is encrypted, even if the e-mail itself is not. The reason for this is simple: You do not want some malicious security cracker “listening in” on your authentication session with the mail server. If someone does this, that person can then send e-mails as you, receive your e-mail, and generally cause all kinds of problems for you (including spammers). Check with your ISP’s policies to determine whether authentication is encrypted and even how it is encrypted (so you might be able to determine how trivial it is to crack the encryption scheme used).

4. Digitally sign your e-mails. As long as you observe good security practices with e-mail in general, it is highly unlikely that anyone else will ever have the opportunity to usurp your identity for purposes of e-mail, but it is still a possibility. If you use an encryption tool such as PGP or GnuPG to digitally sign your e-mails, though, recipients who have your public key will be able to determine that nobody could have sent the e-mail in question without having access to your private key — and you should definitely have a private key that is well protected.

5. If, for some reason, you absolutely positively must access an e-mail account that does not authorize over an encrypted connection, never access that account from a public or otherwise unsecured network. Ever. Under any circumstances.

Be aware of both your virtual and physical surroundings when communicating via e-mail. Be careful. Trust no one that you do not absolutely have to trust, and recognize the dangers and potential consequences of that trust.

Your e-mail security does not just affect you; it affects others, as well, if your e-mail account is compromised. Even if the e-mail account itself is not compromised, your computer may be if you do not take reasonable care with how you deal with e-mails — and that, in turn, can lead to affecting both you and others adversely as well.

Don’t be a victim.

Link to the article: CLICK HERE!

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Bar Maid

Offline Offline
Joined: Jan 22, 2005
Posts: 2011
Location: Cleveland. UK.
PostPosted: Tue Nov 18, 2008 11:06 pm
Post subject: Re: E-mail security tips...

I thought the use of PGP was banned in the US ?
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Offline Offline
Joined: Jan 21, 2005
Posts: 6989
Location: Central Illinois, USA
PostPosted: Wed Nov 19, 2008 1:06 am
Post subject: Re: E-mail security tips...

I can't say for sure Kit, but I think PGP (Pretty Good Privacy) is ok. If not, GnuPG (GNU Privacy Guard) is fine.

The GNU Privacy Guard (GnuPG) package is a ``complete and free replacement for PGP. Because it does not use the patented IDEA algorithm, it can be used without any restrictions. GnuPG is a RFC2440 (OpenPGP) compliant application.''

[sarcasm](Not that the US Gov would spy on anyone's email ) [/sarcasm] LOL
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