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Showing posts with label Internet security. Show all posts
Showing posts with label Internet security. Show all posts

Improve Gmail Spam Filter Performance

Gmail is one of the best mail services but there are occasions when our known and trusted email moves to the Spam folder, then what should we do at this stage just move it to the inbox or something else?

Always the auto generated emails move to the Spam folder but this does not mean that all the mails generated automatically are spam, so performing the following steps will improve the performance of the Spam filter.

Increase the Performace of Email Spam Filter

. If mail in the Spam folder is not spam then click “Not Spam” that not only moves the mail back to the inbox but also intimates the Gmail spam filter that the source was genuine and watch out for it next time.

. Further any mail coming from the same source will directly move to the Inbox next time.

. Adding the sender’s contact to the address book/contact list ensures that the mail move to the inbox next time.

. Gmail always deliver messages from members of your Contacts list to your inbox.

. Above email tips are not only for Gmail but also for other emails like yahoo mail, thunderbird email client, microsoft outlook express email client, IBM lotus email client etc.

Microsoft Internet Explorer IE8 Cyber Attack Security Flaw

The government has issued an alert to civil servants, advising them how to mitigate the risk of a widely publicised flaw in Internet Explorer.

The Cabinet Office on Wednesday urged government departments to use workarounds outlined in a Microsoft advisory on the flaw, as there is no patch available. The software maker is telling customers using IE6 and IE7 to update to the more robust IE8 amid recommendations from security organisations that users switch to another browser until the problem is fixed.

Microsoft has promised an out-of-band patch for the invalid pointer reference issue in Internet Explorer. The flaw, which was exploited by Chinese hacks against Google, has had major repercussions in Google's relationship with the Chinese authorities.

Apple Security patches for Mac OS X

Apple has released six patches for Mac OS X and Mac OS X Server, including one for a zero-day flaw that could allow a hacker to hijack a web-browsing session.

The zero-day vulnerability, which was made public in November 2009, lies in an authentication gap in TLS (Transport Layer Security) and SSL (Secure Sockets Layer) encryption protocols, Apple said in an advisory on Tuesday.

TLS and SSL protocols, commonly used by banks and online retailers to protect transactions, use a series of 'handshakes' to negotiate the session between the server and the client. As the protocols allow renegotiation of the session, an intruder can insert code undetected. The protocol-level breach could allow the attacker to take over a browser session and successfully impersonate the user, in what is known as a man-in-the-middle, or MITM, attack.

Another fix addresses an buffer-overflow issue in CoreAudio. If a user plays a malicious MP4 audio file, it could crash the application or allow an outsider to run code on the affected machine, according to the advisory.

The patch bundle, which is available via Apple's software updates or its download site, also includes a fix for an issue in component-level Cupsd that could be used to create a denial-of-service attack.

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