Arduino

Mozilla is updating its Firefox Web browser with new technology that is targeted at making the open source browser more stable. The Firefox 3.6.4 release also includes fixes for four critical security vulnerabilities. Firefox 3.6.4 is the first Firefox update in the Lorentz branch of Firefox development, which adds new features to incremental point updates of the browser. Typically, point updates in the Firefox browser do not introduce new functionality, but rather are built to address bug and security issues. The Firefox 3.6.3 release came out in April in response to a reported security vulnerability from the Pwn2own hacking competition. "Results from our beta testing show Firefox 3.6.4 will significantly reduce the number of Firefox crashes experienced by users who are watching online videos or playing games," Mike Beltzner, Mozilla's director of Firefox, wrote in a blog post. "When a plug-in crashes or freezes while using Firefox, users can enjoy uninterrupted browsing by simply refreshing the page. The way crashes are reduced is through Firefox 3.6.4's out-of-process plug-in support. With out-of-process plug-ins, if a plug-in has stability issues or crashes it won't take down the whole browser, since the plug-ins run in their own process thread. The approach is similar to one taken by Google's Chrome browser. The delivery of the out-of-process plug-in technology inside of the 3.6.x release cycle is part of Mozilla's Lorentz agile effort at more rapid releases. With the Lorentz approach, the idea was that the Firefox 3.6.x branch could be updated with features more rapidly and not break backwards compatibility with add-ons and plug-ins. Not all plug-ins will run out-of-process in Firefox 3.6.4. Only Adobe Flash, Apple Quicktime and Microsoft Silverlight are being supported, with the aim of adding other plug-ins for future Firefox releases. In addition to the crash protection provided by Firefox 3.6.4, Mozilla also has a plug-in checker service. With the Mozilla plug-in checker, which supports both Firefox and rival browser Microsoft Internet Explorer, users can ensure that they are running up-to-date plug-ins. Firefox 3.6.4 also provides fixes for four critical security vulnerabilities. Among the flaws fixed are memory corruption, heap buffer overflow and integer overflow flaws. A critical security fix is also being made to how Firefox handles plug-in instances that were reported by Microsoft. "Microsoft Vulnerability Research reported that two plug-in instances could interact in a way in which one plug-in gets a reference to an object owned by a second plug-in and continues to hold that reference after the second plug-in is unloaded and its object is destroyed," Mozilla stated in its advisory." In these cases, the first plug-in would contain a pointer to freed memory which, if accessed, could be used by an attacker to execute arbitrary code on a victim's computer." With the Firefox 3.6.4 release now available, developers are continuing to work on the next generation Firefox 4 browser. Currently in alpha testing, the first Firefox 4 beta is targeted for release this month, providing improved performance, add-on and HTML5 capabilities. Sursa: http://www.esecurityplanet.com/features/article.php/3889196/Mozilla-Firefox-364-Delivers-Stability-and-Security.htm

@Krisler12 Nu, Viorel e fondatorul. Eu fac parte din echipa.

Nume: Tehnorama Link: http://www.tehnorama.ro/ Blog despre robotica. Astept feedback.

Cel mai bine iei placa de dezvolare (programator) de la Arduino, dar functioneaza doar pentru microcontrollerele Atmega. PIC cam suge. Uitati aici poza cu Arduino Duemilanove: Pentru shield-uri, senzori si alte trasnai, puteti sa vizitati RoboFun.

Imagine getting hundreds or thousands of calls on your home, business, or cell phone, tying up the lines. And when you answer, you hear anything from dead air to recorded messages, advertisements, or even phone sex menus. It’s annoying, no doubt. But it could be more than that—it could be a sign that you’re being victimized by the latest scam making the rounds. This ”telephone denial-of-service attack” could be the precursor to a crime targeting your bank accounts. The FBI is warning consumers and businesses about a new scheme that uses telecommunications denial-of-service (TDoS) attacks as a diversion to what is really happening: the looting of bank and online trading accounts. The FBI determined fraudsters compromised victim accounts and contacted financial institutions to change the victim profile information (i.e., e-mail addresses, telephone numbers, and bank account numbers). Denial-of-service attacks, by themselves, are nothing new—computer hackers use them to take down websites by flooding them with large amounts of traffic. The TDoS attacks used automated dialing programs and multiple accounts to overwhelm victims’ cell phones and land lines with thousands of calls. When victims answered the calls they heard dead air (nothing on the other end), an innocuous recorded message, advertisement, or a telephone sex menu. Calls were typically short in duration but so numerous that victims changed their phone numbers to terminate the attack. These TDoS attacks were used as a diversion to prevent financial and brokerage institutions from verifying victim account changes and transactions. Fraudsters were afforded adequate time to transfer funds from victim brokerage and financial online accounts. Victims don’t immediately think to contact law enforcement because to them, the numerous phone calls appear to be a technical issue with the telephone carrier and not a criminal threat. One trend that the FBI sees with the malicious phone calls is that when they are answered, many of the victims report hearing a recorded advertisement for an American car company with an announcer having an Asian accent. The other prominent trend is hearing a telephone sex “menu” when answering one of these calls. Protection from TDoS attacks and other types of fraud requires consumers to be vigilant and proactive. In Newark’s Public Service Announcement (PSA), they recommend the following guidelines for consumers to protect themselves: * Implement security measures for all financial accounts by placing fraud alerts with the major credit bureaus if you believe they were targeted by a TDoS attack or other forms of fraud. * Never give out personal information to an unsolicited phone caller or via e-mail; * Check your account balances often; * Use strong passwords for all financial accounts and change them regularly. * Obtain and review your annual credit report for fraudulent activity. * Protect your computers with the latest virus protection and security software. If you were a target of a TDoS attack, immediately contact your financial institutions, notify your telephone provider, and promptly report it to the IC3 website at www.ic3.gov. The IC3 complaint database links complaints to assist in referrals to the appropriate law enforcement agency for case consideration. The complaint information is also used to identity emerging trends and patterns. Source: http://www.examiner.com/x-6564-Chicago-Residential-Examiner~y2010m6d21-FBI-warning-all-consumers-and-businesses-of--TDoS-attacks?cid=exrss-Chicago-Residential-Examiner

[Graham] designed this PIC based Tetris game on a single board. The hardware is quite nice but we enjoyed his explanation of the graphics algorithm that he used. Having coded Tetris from the ground up ourselves we understand how difficult it is to explain how the program works. Tracking pieces already on the board as well as moving pieces, making sure that rotation won’t cause a collision with another piece or go out-of-bounds, and looking for completed lines all add up to one bid headache. [Graham's] method for handling rotation involves choosing a point around which to rotate, measuring how this affects each pixel in the piece, and then checking those pixels for overlaps. It may take a couple of readings, but he’s done a brilliant job of making it understandable. There’s a demo after the break and the link at the top takes you to his treatise on Tetris. Video: Source: http://hackaday.com/ Vedeti si: http://en.wikipedia.org/wiki/Microcontroller http://en.wikipedia.org/wiki/PIC_microcontroller BTW, mi-am adus aminte de:

Nu inteleg de ce sunteti asa de revoltati. Doar reflectati 5 min. asupra acestui subiect si veti afla singuri raspunsul. Pascal este folosit in scoli pentru a pune bazele gandirii algoritmice. In orice caz, am obs. ca in foarte multe licee se migreaza spre C/C++, asta dupa 1-2 ani de studiu in Pascal. Ca programator, sunt sanse extrem de mici sa lucrezi in Pascal / Delphi. Va trebui sa va indreptati catre limbaje mai cautate (C, C++, C#, Java). Parerile sunt impartite, unii spun ca e bun ca e limbaj didactic; altii spun ca e o tehnologie veche si depasita. P.S. Eu sunt pentru inlocuirea Pascal-ului cu Python, care are mai multe avantaje ca C si C++.