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公共安全和网络安全教育中心(CPSCE)致力于为行业专业人士提供及时和相关的信息, as well as the communities we serve. 除了全年举办各种特别活动外, 该中心还维护着一份广受好评的公共安全和网络安全资源清单.
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Association of Technology Professionals 2nd Annual Scholarship Recipient Announced >
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Aspect-Oriented Programming's Ironical Relation to Information Security >
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从行业领导者那里获得最新的网络安全新闻和见解.
Schneier on Security
星期五鱿鱼博客:新发现的吸血鱿鱼
July 5, 2024 - 5:39pm
Bruce Schneier
A new vampire squid species was discovered in the South China Sea.
New Open SSH Vulnerability
July 3, 2024 - 11:27am
Bruce Schneier
It’s a serious one:
The vulnerability, which is a signal handler race condition in OpenSSH’s server (sshd), allows unauthenticated remote code execution (RCE) as root on glibc-based Linux systems; that presents a significant security risk. This race condition affects sshd in its default configuration.
[…]
This vulnerability, if exploited, could lead to full system compromise where an attacker can execute arbitrary code with the highest privileges, resulting in a complete system takeover, installation of malware, data manipulation, and the creation of backdoors for persistent access. It could facilitate network propagation, allowing attackers to use a compromised system as a foothold to traverse and exploit other vulnerable systems within the organization...
Upcoming Book on AI and Democracy
July 2, 2024 - 2:11pm
Bruce Schneier
If you’ve been reading my blog, you’我注意到我写了很多关于人工智能和民主的文章, 主要是和我的合著者内森·桑德斯. I am pleased to announce that we’re writing a book on the topic.
This isn’这不是一本关于深度造假或错误信息的书. 这是一本关于当人工智能制定法律时会发生什么的书, adjudicates disputes, audits bureaucratic actions, assists in political strategy, 并建议市民支持哪些候选人和问题. It&这是一本试图研究人工智能辅助的民主制度可能是什么样子的书, 然后是如何最好地确保十大正规赌博平台大全排行利用好的部分,同时避免坏的部分...
Public Surveillance of Bars
July 1, 2024 - 4:19pm
Bruce Schneier
This article about an app that lets people remotely view bars to see if they’re crowded or not is filled with commentary—on both sides—about privacy and openness.
神经网络模型提取
June 28, 2024 - 12:29pm
Bruce Schneier
A new paper, “Polynomial Time Cryptanalytic Extraction of Neural Network Models,” by Adi Shamir and others, uses ideas from differential cryptanalysis to extract the weights inside a neural network using specific queries and their results. This is much more theoretical than practical, but it’s a really interesting result.
Abstract:
Billions of dollars and countless GPU hours are currently spent on training Deep Neural Networks (DNNs) for a variety of tasks. Thus, it is essential to determine the difficulty of extracting all the parameters of such neural networks when given access to their black-box implementations. Many versions of this problem have been studied over the last 30 years, and the best current attack on ReLU-based deep neural networks was presented at Crypto’20 by Carlini, Jagielski, and Mironov. It resembles a differential chosen plaintext attack on a cryptosystem, which has a secret key embedded in its black-box implementation and requires a polynomial number of queries but an exponential amount of time (as a function of the number of neurons). In this paper, we improve this attack by developing several new techniques that enable us to extract with arbitrarily high precision all the real-valued parameters of a ReLU-based DNN using a polynomial number of queries and a polynomial amount of time. We demonstrate its practical efficiency by applying it to a full-sized neural network for classifying the CIFAR10 dataset, which has 3072 inputs, 8 hidden layers with 256 neurons each, and about 1.2 million neuronal parameters. An attack following the approach by Carlini et al. requires an exhaustive search over 2^256 possibilities. Our attack replaces this with our new techniques, which require only 30 minutes on a 256-core computer...
Krebson Security
非秘密网络访问代理x999xx
July 3, 2024 - 12:41pm
BrianKrebs
大多数老练的网络犯罪分子都会想方设法将自己的真实姓名与黑客账号分开. 但在某些老派的俄罗斯黑客中,经常会发现一些主要的黑客几乎没有采取任何措施来阻止人们发现他们在现实生活中是谁. 这种现象的一个案例研究是“x999xx”,这个绰号是一位受人尊敬的俄罗斯黑客所取,他专门为各种勒索软件组织提供初始网络访问权限.
KrebsOnSecurity因冒牌Radaris CEO被起诉
June 20, 2024 - 3:16pm
BrianKrebs
On March 8, 2024, KrebsOnSecurity发表了一篇关于消费者数据代理Radaris的深入研究, 网站最初的所有者是马萨诸塞州的两名男子,他们经营着多家俄语约会服务和附属项目, 除了一大堆令人眼花缭乱的人物搜索网站. 那篇文章的主题威胁要起诉KrebsOnSecurity诽谤,除非该报道被撤回. Meanwhile, 他们的律师已经承认,拉达里斯从一开始就命名为首席执行官的人是一个伪造的身份.
涉嫌“分散蜘蛛”黑客组织的老板被捕
June 15, 2024 - 7:40pm
BrianKrebs
一名来自英国的22岁男子本周在西班牙被捕,据称他是“分散蜘蛛”的头目, 一个涉嫌入侵Twilio的网络犯罪组织, LastPass, DoorDash, Mailchimp, 以及近130个其他组织.
补丁星期二,2024年6月“召回”版
June 11, 2024 - 6:57pm
BrianKrebs
微软今天发布了更新,修复了Windows和相关软件中的50多个安全漏洞, 对Windows系统管理员来说,这个月的周二补丁相对较少. 微软还对微软旗舰操作系统的一项新功能——不断截屏——引发的大量负面反馈做出了回应, 表示该功能将不再默认启用.
“终极行动”打击恶意软件交付平台
May 30, 2024 - 11:19am
BrianKrebs
美国和欧洲的执法机构今天宣布了“终局行动”, 一项针对一些最流行的网络犯罪平台的协调行动,这些平台传播勒索软件和窃取数据的恶意软件. 被称为“有史以来规模最大的反僵尸网络行动”,这项国际努力被宣传为针对像IcedID这样的高级恶意软件“投放者”或“加载者”的持续行动的序幕, Smokeloader and Trickbot.
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