Extensive Systems

21/12/2021

What is Cyber Security? Definition...

Cyber security is the practice of defending computers, servers, mobile devices, electronic systems, networks, and data from malicious attacks.

21/12/2021

A new vulnerability in the Java-logging library Apache Log4j poses risks for huge swathes of the internet. The vulnerability in the widely used software could be used by cyber attackers to take over computer servers, potentially putting everything from consumer electronics to government and corporate systems at risk of a cyber attack.

The security flaws on the Apache Log4Shell module look like they will not end anytime soon. The company has recently released a patch dubbed 2.15.0, which was incomplete to fix the problems. Then the 2.16.0 version was released, and it was thought to be safe because it was just cutting the flawed se...

16/03/2020

The assault was not a hack but a distributed denial of service, or DDOS, attack, according to multiple sources.

The Department of Health and Human Services experienced a cyberattack Sunday night related to its coronavirus response, administration sources confirm to ABC News.

16/05/2017

What you need to know about the WannaCry Ransomware

The WannaCry ransomware struck across the globe in May 2017. Learn how this ransomware attack spread and how to protect your network from similar attacks.

Co-occurrence of known Lazarus tools and WannaCry ransomware: Symantec identified the presence of tools exclusively used by Lazarus on machines also infected with earlier versions of WannaCry. These earlier variants of WannaCry did not have the ability to spread via SMB. The Lazarus tools could potentially have been used as method of propagating WannaCry, but this is unconfirmed.
Shared code: As tweeted by Google’s Neel Mehta, there is some shared code between known Lazarus tools and the WannaCry ransomware. Symantec has determined that this shared code is a form of SSL. This SSL implementation uses a specific sequence of 75 ciphers which to date have only been seen across Lazarus tools (including Contopee and Brambul) and WannaCry variants.
While these findings do not indicate a definite link between Lazarus and WannaCry, we believe that there are sufficient connections to warrant further investigation. We will continue to share further details of our research as it unfolds.

A virulent new strain of ransomware known as WannaCry (Ransom.Wannacry) has hit hundreds of thousands of computers worldwide since its emergence on Friday, May 12. WannaCry is far more dangerous than other common ransomware types because of its ability to spread itself across an organization’s network by exploiting a critical vulnerability in Windows computers, which was patched by Microsoft in March 2017 (MS17-010). The exploit, known as “Eternal Blue,” was released online in April in the latest of a series of leaks by a group known as the Shadow Brokers, who claimed that it had stolen the data from the Equation cyber espionage group.

Am I protected from the WannaCry ransomware?
Symantec Endpoint Protection (SEP) and Norton have proactively blocked any attempt to exploit the vulnerability used by WannaCry, meaning customers were fully protected before WannaCry first appeared.

The Blue Coat Global Intelligence Network (GIN) provides automatic detection to all enabled products for web-based infection attempts.

10/04/2017

ZTE launched its Quartz Smart Watch featuring Android Wear 2.0 and cellular connectivity.will be released on 14 April selling for $192 in US

23/02/2017

Purported leaks of galaxy 8 show major change as home button disappears...

23/02/2017

AMD on board. Better!

AMD, that long-suffering underdog has finally rocked Intel’s boat, and how!

14/01/2017

Here are some top brands of the best antivirus programs you can buy or download:

Kaspersky Lab
Bitdefender
Symantec
Trend Micro
McAfee
ESET

14/01/2017

Whether it is infrastructure assessments, web application assessments or mobile assessments, we prov

14/01/2017

How we test Internet Security software
We take as our starting point the test results from the UK's SELabs and Germany's AV-Test.org. These two labs run independent evaluations of free and paid-for antivirus and internet security suites of all kinds, and compile regular charts of the most effective products.

14/01/2017

What is antivirus?
Antivirus software detects, and then prevents, disarms or removes malicious programs or malware, often referred to as 'viruses'. Antivirus doesn't offer a perfect solution to the problem of malware, but it is a critical first step to securing your PC or laptop. To help prevent viruses infecting your PC you must install antivirus, and then regularly update your antivirus software.

31/12/2016

Basic Programming Workstation Setup.

1:10 - Overview 2:08 - The build-essential metapackage 3:16 - The Mighty Text Editor: vim, emacs, and Sublime Text 3 4:49 - Why not emacs or vim? 6:30 - Mult...