Java: Oracle releases emergency update

The security update is to plug a hole in Java that was recently added to the Blackhole exploit tool. Despite the urgency and importance of this component of the upgrade, Oracle makes no mention about the dangerousness of the situation and the update dubbed simply "Recommended Version 7 Update 7".

Remember that this vulnerability in Java 7 allowed hackers write malware to infect a computer just by visiting a website. The problem affects both Windows and Mac

At this time, it is advised that all users who visit the Oracle website to download the update.

JAVA exploit leads to serious security hole

It has been confirmed that the vulnerability affects users of Windows, Linux and Mac OS X. The bug is present in JRE 1.7 is the latest version. Apple had decided, since the Lion version of last year that it would stop offering Java installed on their machines, that policy remained with the Mountain Lion. However, users can manually install Java on your computer.

The computer security expert Tod Beardsley also confirmed that the flaw affects Macs. Just you have this version of Java installed and visit any page that has been configured for an attack and is replaced by your computer at the mercy of hackers.

It is expected now that Oracle can release a security update for failure. For now you should keep the version 1.6 or disable Java in your browser.

10 tips to improve our wireless network

How to improve a wireless network?
In this article I will give some tips to try to improve the quality of wireless signal in our house, in order to have a more stable network, with fewer breaks and a better debt.

1 - Place the wireless router (or access point) at the midpoint

So we can get cover more areas (bedroom, living room, kitchen, etc.) from our house, causing the signal to higher quality. If we put our access point at one end, possibly at the other end the signal strength is not the best. 

2 - Keep the router away from walls, metal objects, glass, etc.

We must try to move away our WiFi router from metals, some types of floors, glass or other surfaces that are subject to interference. Equipment such as microwaves, drills, etc are also a lot of interference sources. Make an analysis of the spectrum.

3 - Replace the antenna of the router (if possible)

The antennas that come with the router are usually omni-directional signal that is transmitted in all directions. If your router is near an outside wall, 'half' of the signal will not be passed because it will be diffused out of the house (for example). In this sense we can choose an antenna with more gain (DBIS) and also directional or sectoral, focusing the signal in a place / area specific.

More than 500 000 Mac infected by vulnerability in Java

Several security companies are warning of a scenario of more than half a million Macintosh computers infected with a virus that targets Apple's security structure.

The Flashback trojan was created to break down Mac OS X defense. This is a variation of a virus usually active in Windows PC's.

It is estimated that over 600,000 Mac machines can be infected with Flashback, which is designed to allow hackers to steal potentially valuable information like passwords and bank account numbers. 

But Apple already released an update for Java. Look in your Mac OS X in Software Update, to prevent be infected.