数码天地 今日: 0|主题: 4759|排名: 39 

最后发表： 四香油饼
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SAN FRANCISCO — The RSA Security division of the EMC Corporation said Thursday that it had suffered a sophisticated data breach, potentially compromising computer security products widely used by corporations and governments.

The company, which pioneered an advanced cryptographic system during the 1980s, sells products that offer stronger computer security than simple password protection. Known as multifactor authentication, the technology is typically based on an electronic token carried by a user that repeatedly generates a time-based number that must be appended to a password when a user logs in to a computer system.

RSA, which is based in Bedford, Mass., posted an urgent message on its Web site on Thursday referring to an open letter from its chairman, Art Coviello. The letter acknowledged that the company had suffered from an intrusion Mr. Coviello described as an “advanced persistent threat.”

In recent years a number of United States companies and government agencies have been the victim of this type of attack, in which an intruder either exploits an unknown software vulnerability or in some way compromises the trust of an employee to take command of a computer or an entire network within a company.

In 2009, for example, Google fell victim to an attack that it said had originated in China, and it ended commercial operations in the country in response.

Mr. Coviello said that the company’s investigation had revealed that the intruder successfully stole digital information from the company that was related to RSA’s SecurID two-factor authentication products. He did not give precise details about the nature of the information, but said it could potentially reduce the effectiveness of system in the face of a “broader attack.” The company said that there was currently no indication that the information had been used to attack its customers.

“We took a variety of aggressive measures against the threat to protect our business and our customers, including further hardening of our I.T. infrastructure,” Mr. Coviello said. “We also immediately began an extensive investigation of the attack and are working closely with the appropriate authorities.”

Company officials did not return phone calls seeking comment on Thursday.

Despite the lack of detail, several computer security specialists said the breach could pose a real threat to companies and government agencies who rely on the technology.

One possibility, said Whitfield Diffie, a computer security specialist who was an inventor of cryptographic systems now widely used in electronic commerce, is that a “master key” — a large secret number used as part of the encryption algorithm — might have been stolen.

The worst case, he said, would be that the intruder could produce cards that duplicate the ones supplied by RSA, making it possible to gain access to corporate networks and computer systems. Mr. Diffie is vice president for information security and cryptography at the Internet Corporation for Assigned Names and Numbers.

In addition to posting the chairman’s letter, the company submitted a filing to the Securities and Exchange Commission in which it stated that it did not expect the theft to have a financial impact.

RSA was founded in 1982 by a small group of technologists who at times were actively opposed by the National Security Agency, which was trying to limit the spread of sophisticated cryptography technology. In 2009, the company said publicly that its SecurID system was being used by 40 million customers. Last year it said its technology was used to secure the identities and assets of more than 250 million people.

最后发表： atelier
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我也是10日同时升级了我的iphone4和iphone 3gs，一切都很顺利

最后发表： yuba
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恩

上一代是13寸不给Intel Core，这一代是13寸不给独显

所有代13寸的分辨率只有1280x800

Pro内的差异化是苹果刻意造成的，为的就是不用掏$2100，掏$1400就可以用Pro了

最后发表： herejingying
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俩字送给这个哥们： 烧包～～～～

最后发表： greatinfo
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垃圾邮件服务器会自动变换发件人名字，不断的发送

最后发表： greatinfo
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最后发表： greatinfo
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TPG的计划性价比非常高，业务发展快，服务就难免会跟不上。
不过本人一直用TPG，换了二次计划，都没有问题

最后发表： greatinfo
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TPG的ADSL2+，HOMEPHONE计划，$59.99

最后发表： 前天
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留下，备用~~~

最后发表： key
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今天在火车上用iPad看新闻，实验结果实在太让人失望。
主要原因是火车的顶部全是强灯，iPad又不能立起来拿，平放着看实在受罪。

最后发表： 四香油饼
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firefox地址栏太短，好几个a藏在行尾看不到，我用了30秒才全把他们逮到

最后发表： 小名
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拿个双面胶把这两个玩意背靠背粘在一起用，特爽～～～～～

最后发表： aristos
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多谢各位，就是每月4G不知道每天跟家里视频聊天够不够用。

最后发表： maggiehiking
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我刚买了一个lyca，收费是0.19这个月也不收通话费

最后发表： 8戒
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穷人自己找了台P3 1G的机子，换了个350G的IDE硬盘上 FREENAS（Samba，SSH，FTP，BT……） + ML-DONKEY。网络管理，功耗大概50W左右。

最后发表： 哇哈哈
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试用了NOKIA的邮件功能，发现挺不错，呵呵，比想象的要好多了！又可以混一年了，呵呵！

最后发表： 巴巴布莱伯
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哎，sony变sorry，买个新的给你老婆就行啦

最后发表： 李大锤
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最省钱的方法就是用这个
google maps + brut..
支持语音导航，地图要自己从google那里抓，才能变成离线不走data流量。

最后发表： NEWGAY
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我喜欢这个 http://staticice.com.au/

以前在电脑店上班时，我们都是用这个来比较价格

最后发表： ubuntuhk
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写一个浏览器的内核不容易，所以国内那些浏览器都是用IE的内核，化个妆而已。

只有这些个PC浏览器可能是自己实现的内核：chrome（可能是目前市场上最快的浏览器）、IE、firefox、safari、Opera。

最后发表： 四香油饼
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我记得我做了virtual host的设置来着，刚才又登录上去确认了一下，我的设置是这样的：


NameVirtualHost *:80
<VirtualHost *:80>
        ServerName www.sxyb.net
        DocumentRoot /var/www/html/sxyb
</VirtualHost>


我突然恍然大悟了！刚才开帖子的时候还没明白，写到这里我突然明白了，虽然我的virtual host设置本身没啥问题，但似乎对于名称不符合的server name，apache会自动选用所有virtual host列表里的第一个，我sxyb.net排在第一个，所以我虽然设置了virtual host，但实际上对于所有不匹配的server name，都会打开sxyb.net

所以，我在第一条的位置，加了个空的virtual host设置，

<VirtualHost *:80>
      DocumentRoot /var/www/html/errormsg
</VirtualHost>

然后在errormsg目录里放了个error message, 就行啦。

谢谢老乞丐指点！

最后发表： urban2000
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我还没刷过这玩意呢，有时间研究下

最后发表： 8戒
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要配双屏24“的才够爽吧。一边看书查资料，另一边开程序计算监控。

最后发表： mason00
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最后发表： 小名
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按道理是这样。但是我一直查不到0.x的款，但10刀却已经被扣了。

最后发表： Miki.Chen
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可以升级到49，不要付违约金的，但是不能降级。3和vodafone可以，其他公司不知道

最后发表： coredump
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是否禁用了javascript？

最后发表： 蒙面超人
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坐等小强讲解

最后发表： stan
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更新太快跟不上了，直接等iPad6了

最后发表： Bobbijo
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可以手动删除的，先去了安全模式，删掉这里上面列的键值和文件http://blog.teesupport.com/remove-antimalware-go-virus-antimalware-go-manual-removal-instructions/

最后发表： key
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没有这么简单的。如果公司本身就做这种业务，而你私自把相关的东西发布，会很麻烦的。

最后发表： 江南柴进
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多谢分享，我用php连网上的mysql服务器，很方便，套接字和TCP，没有区别。

最后发表： bio
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这周在dick smith半价

最后发表： Dreamhouse
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现在可以upload照片了

我和老丐是在抬杠。

呵呵呵

最后发表： coredump
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系统引导程序被破坏了，用系统安装盘修复下吧。

最后发表： tobyex
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希望能为大洋洲爱好星际的朋友提供一个平台

最后发表： rayki
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偶也玩了。 但是感觉还是不够暗黑。。  简单玩玩还好。 钓鱼挺神。  每次吃鱼都有不同的效果。

最后发表： tony.zheng
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LZ的去了解清楚再说吧，了解GPS是怎么收费的？向谁收费的。 GPS 已经赚得盆满钵满的了。美国的眼睛里那有免费两字的。GPS生产商难道不把授权费打入成本了吗。再问问移动电话的基站，实时授时收不收费。你间接交费给GPS。不能说是免费的。

最后发表： akai
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如果数据不着急用，别在悉尼开盘啦。 这里开个盘1500-2500. 我硬盘挂过。
他们给的报价。。
后来我忍， 我忍， 忍到了回国开盘。 1750 数据恢复了。
是磁头移位的问题。
如果开盘后盘面有划伤 估计也玄。。。

最后发表： mianwo
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看起来e-ink对比度还是差了点，这个新kindle跟我两年前买的sony 505显示效果好像没什么进步