Heartbleed
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Heartbleed is a serious security bug discovered in the popular OpenSSL encryption software. It allows hackers to access sensitive user information transmitted over the internet, such as credit card numbers, social security numbers, user credentials and passwords. Over 66% of websites are believed to be affected. The bug has potentially allowed private data to be exposed and intercepted for up to two years. It poses a huge threat as stolen information is untraceable and sites need to patch the vulnerability, revoke compromised keys, and reissue new ones to protect users going forward.
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This is the presentation of phishing seminar.pptx. created and published by m nadeem qazi(mnqazi). This is perfect for those student who wants to help in creating their presentation on the topic of Phishing or hacking.
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Phishing and Spear Phishing attacks are the number one starting point for most large data breaches. But there is currently no efficient prevention technology available to mitigate this risk. Learn what capabilities organizations need to have in order to respond to phishing attacks and lower the risk.
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Two-factor authentication provides a more secure method of authentication than simple passwords alone. It adds a second factor of authentication, such as a one-time password (OTP) generated on a user's device, in addition to a username and password. The white paper explores how OTPs delivered via software or text message can provide two-factor authentication without hardware tokens. It also discusses standards-based OTP generation algorithms and integrating two-factor authentication with remote access systems.
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Today, a large number of people access internet through their smart phones to login to their bank accounts, social networking accounts and various other blogs. In such a scenario, user authentication has emerged as a major security issue in mobile internet. To date, password based authentication schemes have been extensively used to provide authentication and security. The password based authentication has always been cumbersome for the users because human memory is transient and remembering a large number of long and complicated passwords is impossible. Also, it is vulnerable to various kinds of attacks like brute force, rainbow table, dictionary, sniffing, shoulder surfing and so on. As the main contribution of this paper, a new passwordless authentication scheme for smart phones is presented which not only resolves all the weaknesses of password based schemes but also provide robust security. The proposed scheme relieves users from memorizing and storing long and complicated passwords. The proposed scheme uses ECDSA which is based on Elliptic Curve Cryptography (ECC). ECC has remarkable strength and efficiency advantages in terms of bandwidth, key sizes and computational overheads over other public key cryptosystems. It is therefore suitable for resource constraint devices like smart phone. Furthermore, the proposed scheme incorporate CAPTCHA which play a very important role in protecting the web resources from spamming and other malicious activities. To the best of our knowledge, until now no passwordless user authentication protocol based on ECC has been proposed for smart phones. Finally, the security and functionality analysis shows that compared with existing password based authentication schemes, the proposed scheme is more secure and efficient.
OlgerHoxha_Thesis_Final
This document discusses password managers and their adoption. It begins by outlining the need for secure authentication as online transactions and data sharing increases. While passwords are theoretically secure, users often choose weak passwords and reuse them across accounts. This exposes them to risk if one password is compromised.
The document then describes three types of password managers: browser-based, which are convenient but less secure; desktop-based, which require opening a separate program but offer stronger security; and mobile apps, which provide security and usability on any device. It argues password managers can help users meet best practices for unique, strong passwords without memorization burden, improving security overall.
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Viruses, Biometrics, Encryption
This document contains information on computer viruses, biometric security, encryption, and phishing schemes. It discusses the Code Red virus, the "Love Bug" virus, how biometric security works using fingerprints, an example of a phishing email, advantages and disadvantages of biometric security, how antivirus software combats viruses, and examples of information that should be encrypted like financial records, health records, and passwords.
Online spying tools
Online spying Tools including , cookies, web bugs, spam & spyware , & other hacking methods & also about harming computer etc , its a complete description about Online spying tools , best of luck
Online spying tools
Online spying including : Cookies, web bugs , spam & spyware , it also includes hacking methods & harming computer , a complete package for online spying tools
TM112 Meeting10-Dangerous Data.pptx
This document summarizes key concepts related to online security threats such as malware, hacking, and cyberattacks. It discusses how hackers target individuals through spear phishing emails and how malware like ransomware and backdoors can infiltrate systems. The document also covers password security best practices like hashing, two-factor authentication, and password managers. Cyber threats like viruses, worms, and Trojans are defined as well as how techniques like brute force and dictionary attacks can be used to steal passwords. Overall, the document provides an overview of common online dangers and methods used by hackers to compromise information security.
Five habits that might be a cyber security risk
Email, Malicious Website, Downloads, Outdated Software, Social Media, Phishing, Keystroke capturing, Password Guessing
Ipsec And Ssl Protocols ( Vpn )
The document discusses the importance of software security and best practices for achieving it. It defines security as protecting information and data from unauthorized access while allowing authorized access. Attacks aim to access services, modify or deny data without permission. Major e-commerce companies like Amazon attract hackers due to collecting user information for transactions, so they must implement strong security. The discussion emphasizes designing for security throughout the software development lifecycle, understanding threats, rigorous testing, and risk analysis.
Effects of using IT
A presentation discussing the overall effect IT (information technology) has on the world we live in, including the positive and negative effects.
Giarritano concept paper 4
The document discusses computer security and provides 10 suggestions for keeping computers and networks safe. It focuses on hardware, software, and user security issues. The key recommendations are to use firewalls and encrypt wireless networks, install and regularly update antivirus and other security software, be cautious of emails from unknown senders and links within emails, securely manage passwords by making them complex and unique to each account and changing them regularly, and back up important data.
Computer Secutity.
There are two major types of computer security - software security and hardware security. Software security focuses on protecting access to information and systems through measures like network, server, and data security. It also addresses threats from malicious programs like viruses, spyware, and malware. Hardware security involves physical protection of devices and data through locks, alarms, and safe handling of equipment. Together, software and hardware security work to prevent harm, theft, and unauthorized use of computer systems and information.
Edu 03 assingment
This document discusses legal and ethical issues related to technology and communication in education, focusing on phishing and software privacy. It defines phishing as a type of social engineering attack where attackers try to trick users into revealing sensitive information. Common phishing techniques include promising too-good-to-be-true offers, creating a sense of urgency, including suspicious links or attachments in emails, and impersonating unusual senders. It also discusses how to prevent phishing attacks and defines different types like spear phishing. The document then discusses software privacy, describing types of privacy software that protect users' internet privacy and data through whitelisting/blacklisting, encryption, intrusion detection systems, and steganography.
A Guide to Internet Security For Businesses- Business.com
Recent revelations by National Security Agency (NSA) renegade contractor Edward Snowden have resulted in many businesses paying more attention to how secure their computer systems are. But even the most “cyber-savvy” businesses can have their computer networks hacked and compromised. Use this whitepaper to understand your threats, protective options, and trends in internet security for businesses.
Chapter 2 System Security.pptx
It provides information about Desktop Security, Email Security,Web security,Web Authentication, SSL, SET, Database Security and etc
Computer_Hacking_for_Beginners_Kevin_James_complex.pdf
This document provides information about computer hacking tools and skills. It discusses hacking tools like SQLI Helper, Dark Port Scanner, Sonic Bat virus creator, Brutus password cracker, and IP Tools. It also mentions Cain and Abel password recovery tool. The document outlines essential hacking skills like network packet sniffing, password hash cracking, rainbow tables, and cryptanalysis attacks. It emphasizes the wide IT knowledge required to become a skilled hacker, including fundamentals like networking, operating systems, and programming.
Case 11. What exactly occurred Twitter is one of popular soci.docx
Case 1
1. What exactly occurred?
Twitter is one of popular social media that targeted to be hacked.
The social network said in that approximately 250,000 user accounts were potentially compromised, with attackers gaining access to information including user names and email addresses. The company first detected signs of an attack earlier in the week, which led to an investigation and the discovery of a larger breach. The company detected unusual access patterns that led to identify unauthorized access attempts to Twitter user data. They discovered one live attack and were able to shut it down in process moments later. However, their investigation has thus far indicated that the attackers may have had access to limited user information. Twitter has reset the passwords and revoked session tokens, which allow user to stay logged into the service without reentering a password, for all of these accounts. Affected users will not be able to log in and will receive an e-mail instructing them to reset their password.
2. How was the company affected?
Twitter reports that 250,000 user accounts may have compromised. The company is able to detect the hacker immediately and send e-mail to the affected users instructing them to reset their passwords. They also recommend all users to create strong passwords and disable Java in their browsers.
3. What (if any) measures has the company taken since the breach to prevent future similar incidents?
The company offers tips for all of its users going forward, including using strong passwords that mix numbers and symbols with upper- and lowercase letters, not using the same password for multiple accounts, update and upgrade antivirus software and disabling Java. The company also provides tips to keep the account secure and also steps to take if your account has been compromised.
4. In your opinion, did the company have sufficient security safeguards in place prior to the breach?
In my opinion, Twitter has sufficient security safeguards in place prior to the breach. Twitter is able to detect the attacker before they get through all 200 million monthly active users. 250,000 accounts of affected users is a small amount comparing to the number of Twitter active users. After they notice the attack, the company have been reset the password of affected users and send them e-mail to change their password. I believed that after the breach Twitter would be more aware of the security protection.
Case 2
1. What exactly occurred?
Google detected a coordinated attempt by Chinese entities to compromise the accounts of Chinese dissidents. David Drummond, Google’s chief counsel, said, “A primary goal of the attackers was accessing the Gmail accounts of Chinese human rights activists.” According to George Kurtz at McAfee, the attacks were part of a large-scale, well-organized operation called Aurora. As a result, Google has stopped censoring its search results in China, and has considered pulling out of the country entir ...
Puna 2015
Ethical hacking involves evaluating systems for security vulnerabilities to help protect organizations from criminal hackers. Ethical hackers must be completely trustworthy and skilled in various techniques to test security without harming clients' systems or interests. They seek to answer questions like what intruders can access, what they can do with that information, and whether intrusions would be noticed. An evaluation plan outlines the systems to be tested and any limitations to protect both clients and ethical hackers from legal issues that could arise from security testing activities.
IRJET- Honeywords: A New Approach for Enhancing Security
This document summarizes a research paper on honeywords, a new approach for enhancing password security. Honeywords involve storing fake passwords (honeywords) along with the real password for each user account. If an attacker tries to login with a honeyword, it triggers an alarm. The document outlines the proposed system, which generates a unique honey index for each account during registration. It stores the hash of the real password along with the correct honey index. If an attacker enters an incorrect password after 3 attempts, the account is blocked. The system creates honeywords after successful login. It also discusses related work and concludes that honeywords make password cracking detectable and more difficult.
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Overview
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Artificial Intelligence for XMLDevelopment
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We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
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The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
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Heartbleed
- 2. Heartbleed: Over 66% of websites are believed to be affected
- 3. Web users, beware. There's a new security bug that has been discovered and is described to be "one of the greatest threats to ever surface the World Wide Web," according to The Clock Online.
- 4. The bug, nicknamed Heart Bleed, was discovered on April 8, 2014 by Google and Codenomicon engineers, but has allegedly been around the Internet for about two years now.
- 5. Heart Bleed poses a huge threat to consumers as it compromises sensitive personal consumer information and its attackers are untraceable.
- 6. If you're buying something online and enter something as significant as your credit card number…
- 7. Or if you are applying for a job online and enter personal information such as your address and social security number…
- 8. Heart Bleed can gain access to all of that information.
- 9. How does Heartbleed Work? It begins with the popular encryption software OpenSSL. OpenSSL is used all over the Internet to ensure user information is secured and encrypted. Heartbleed means that that information is now vulnerable.
- 10. At the time of the discovery, Yahoo.com was the only major Internet Company to be affected by Heartbleed.
- 11. FAQ
- 12. What makes the Heartbleed Bug unique? This bug has left large amount of private keys and other secrets exposed to the Internet. Considering the long exposure, ease of exploitation, and attacks leaving no trace this exposure should be taken seriously.
- 13. What does Heartbleed allow to leak? Encryption is used to protect secrets that may harm your privacy or security if they leak. In order to coordinate recovery, compromised secrets have been classified to four categories: 1) primary key material 2) secondary key material 3) protected content 4) collateral
- 14. What is leaked primary key material? These are the crown jewels: the encryption keys themselves. Leaked secret keys allow the attacker to decrypt any past and future traffic to the protected services and to impersonate the service at will. Any protection given by the encryption and the signatures in the X.509 certificates can be bypassed.
- 15. Primary key material Recovery Recovery from this leak requires patching the vulnerability, revocation of the compromised keys and reissuing and redistributing new keys. Even doing all this will still leave any traffic intercepted by the attacker in the past still vulnerable to decryption.
- 16. What is leaked secondary key material? These are for example the user credentials (user names and passwords) used in the vulnerable services.
- 17. Secondary key material Recovery Recovery from this leak requires owners of the service first to restore trust to the service. After this users can start changing their passwords and possible encryption keys. All session keys and session cookies should be invalidated and considered compromised.
- 18. What is leaked protected content? This is the actual content handled by the vulnerable services. It may be personal or financial details, private communication such as emails or instant messages, documents or anything seen worth protecting by encryption.
- 19. Protected content Recovery Only owners of the services will be able to estimate the likelihood what has been leaked and they should notify their users accordingly. Most important thing is to restore trust to the primary and secondary key material as described above. Only this enables safe use of the compromised services in the future
- 20. What is leaked collateral? Leaked collateral are other details that have been exposed to the attacker in leaked memory content. These may contain technical details such as memory addresses and security measures such as canaries used to protect against overflow attacks.
- 21. Collateral Recovery Collateral has only contemporary value and will lose their value to the attacker when OpenSSL has been upgraded to a fixed version.