Cyber Safety - Mykvs.in
Chapter 14 :InformaticsPracticesClass XI ( As perCBSE Board)CyberSafetyNewSyllabus2019-20Visit : python.mykvs.in for regular updates
Introduction-Cyber SafetyCyber safety is the safe and responsible use of Internet& ICT(Information & Communication Technology).Cyber safety is about to not only keeping informationsafe and secure, but also being responsible with thatinformation, being respectful of other people online. Asper Cyber safety peoples are advised to use good'netiquette' (internet etiquettes).Visit : python.mykvs.in for regular updates
Safely Browsing the WebViruses and malware spread, easily and quickly throughwebsites/web browsing. Through clicking over the links found onweb pages or in email mistakenly our computer may be infected.An infected computer can run slow, barrage us with pop-ups,download other programs without our permission, or allow oursensitive personal information to others.Tips for Safe Web Browsing Common sense-(never respond to spam & disclosepersonal information). Use an antivirus & Firewall-It provide realtime malwareprotection. Create strong passwords Mind your downloads -Be sure to review all pre-checkedboxes prompted at download & un-check any extraapplications which we don’t want to install. Stay updated- Update O.S.,Applications & Anti-virus.Visit : python.mykvs.in for regular updates
Identity ProtectionProtection against theft of personal information over CyberSpace without consent, usually for financial gain is known asIdentity Protection.Tips to Prevent Identity Theft Use strong passwords and PINs & Keep passwords andPINs safe. Create log-in passwords for all devices. Beware of phishing scams. Restore old computers to factory settings. Encrypt your hard drive Check security when shopping online-check links authenticitywhich are received from an unsolicited email. Take care when posting on social media-Check security settingson social media accounts, and avoid posting personal information publicly, orpublicly "checking in" . Secure your home Wi-Fi network& Avoid using insecure public Wi-FinetworksVisit : python.mykvs.in for regular updates
Confidentiality of InformationAllows authorized users to access sensitive and secureddata maintains the Confidentiality of Information.Tips to Protect Information Confidential Build strong passwords Use multifactor authentication- a computer user is granted accessonly after successfully presenting 2 or more pieces of evidence. Masking -Thefree version of MaskMe creates an alternate e-mail addresswhenever a Web site asks for a user’s e-mail. E-mails from that site can beaccessed via a MaskMe in-box or forwarded to a user’s regular e-mail account. Private Browsing & Safe Browsing-Purpose of pvt browsing is toavoid leaving a history of one's browsing in the browser history on thecomputer we are using.Use updated brower for safe browsing & browse privately. Encryption-Use https based sites,as HTTPS ensures data security over thenetwork - mainly public networks like Wi-Fi. HTTP is not encrypted and isvulnerable to attackers. PGP is a popular program used to encrypt anddecrypt email over the Internet, as well as authenticate messages with digitalsignatures and encrypted stored files. Avoide using public wifi and public computerVisit : python.mykvs.in for regular updates
Cyber Safety – Social NetworksFacebook, MySpace, Twitter, LinkedIn, Digg,Ning, MeetUpetc . -- the number of social networking sites and tools isexploding nowadays.These are becoming soft tool to attack& target for scam.Tips to stay safe on social media Use a strong passwordUse a different password for each social mediaPassword protect your devices if using social media appsBe selective with friend requests.Be careful while sharing something.Become familiar with the privacy policies of the socialmedia sites. Install antivirus log off when done Create a smaller social networkVisit : python.mykvs.in for regular updates
Cyber trolls & Cyber bullyingCyber trolling is internet slang for a person whointentionally starts arguments or upsets others by postinginflammatory remarks. The sole purpose of trolling isangering people. Purpose – to entertain,to argument,toupset victim,to get attentionCyberbulling: Saying and/or doing mean things to theperson online. It is a harm inflicted through using theInternet,ICT devices,or mobile phones. Purpose – to getrevenge,to harass & threat, to humiliateCyberstalking: Doing research on every aspect of theperson’s life.Cyberharrassment: Continuously contacting the persononline, even though they don’t want you to.Visit : python.mykvs.in for regular updates
Appropriate Usage of Social NetworkSocial Network refers to web and mobile technologies ortheir practices to share content, thoughts, ideas, opinions,experiences etc. online. Various examples of socialnetworks are Facebook, Twitter, YouTube, LinkedIn, andblogging sites among many others.Visit : python.mykvs.in for regular updates
Appropriate Usage of Social NetworkProblems to Avoid Cyber tranger DangerChildren's are advised to not to interact with strangers onsocial networks as there are chances that many people onsocial media are not who they say they are. Digital FootprintThe history of a person's usage of digital devices, moviesearch, programs watched, flight searched, websitessurfed, credit card transaction,cell phone calls,socialmedia messages sent, links clicked and Facebook pagesliked etc.Such information is being used to target ads toconsumers as these are digital footprint of suchconsumers.Visit : python.mykvs.in for regular updates
Appropriate Usage of Social NetworkProblems to Avoid Spread of rumors A lie can travel halfway around the world before the truth hasgot its boots, this phrase totally fits with rumors spread over socialmedia. On average, it takes more than 12 hours for a false claim to bedebunked online where as only 2 hours for true claim.A standard model of rumor spreading is given by Daley andKendall ,which is called DK model.In this model there are N people intotal. Which are categorized into three groups: ignorants, spreadersand stiflers, which are denoted as S, I, and R.when a spreader meet an ignorant, the ignorant will become aspreader.when two spreaders meet with each other, one of them willbecome a stifler.when a spreader meet a stifler, the spreader will lose theinterest in spreading the rumor, so become a stifler.SoVisit : python.mykvs.in for regular updates
Appropriate Usage of Social Network Don’t be rude or abusive Don’t spread rumors You are what you write/tweet Face your problems, don’t Post/facebook yourproblems. Don’t take it too seriously. Don’t use fake name Protect your identity Respect other’s sentiments Don’t fight online Monitor commentsVisit : python.mykvs.in for regular updates
Computer Security ThreatsMalware: Malware could be computer viruses, worms, Trojan horses,dishonest spyware, and malicious .computer virus: It is a small piece of software that can spread from oneinfected computer to another. It can corrupt, steal, or delete data on yourcomputer/hard drive.Trojan horse: can do anything from record your passwords by loggingkeystrokes (known as a keylogger) to hijacking your webcam to watchand record your every move.Computer worm: A computer worm is a software program that can copyitself from one computer to another, without human interaction.Spam: unwanted messages in your email inbox.Phishing:Phishing are fraudulent attempts by cybercriminals to obtainprivate information. For e.g.a message prompt your personal informationby pretending that bank/mail service provider is updating its website.spyware: spyware is used to spy on their victims. An e.g. is keyloggersoftware that records a victim’s every keystroke on his or her keyboard.Adware : unwanted ads shown while surfing internet.Eavesdropping : is the act of intercepting communications between twopoints.Visit : python.mykvs.in for regular updates
Safely accessing web sites How to prevent/remove Adware/malwareUninstall the malicious programs from WindowsUse antivirus program for malware and unwanted programsReset the browser settings to their original defaultsScan for malicious programs antivirus/antimalware program How to prevent/remove virusBeware of Fake Download ButtonsUse a Secure BrowserAvoid Public Torrent SitesDon’t Open Email Attachments Forwarded to YouDon’t Use Your PC’s Admin AccountScan All New Files and Disks How to prevent/remove Trojan Never open unsolicited emails from unknown senders Avoid downloading and installing programs unless you fully trustpublisher Use firewall software Use a fully updated antivirus programVisit : python.mykvs.in for regular updates
Safely Communicating data Secure ConnectionsA secure connection refers to the connection which is encrypted by oneor more security protocols for security of data flowing between two ormore nodes. When it is not encrypted, it can be easily listened byanyone with the knowledge on how to do it. Secure Sockets Layer (SSL) is a computer networking protocol usedfor insecure network, between network application clients andservers .Due to various flaws, SSL was deprecated for use on theinternet by the Internet Engineering Task Force (IETF) in 2015 by theTransport Layer Security (TLS) protocol. Both are not interoperable,TLS is backwards-compatible with SSL 3.0Visit : python.mykvs.in for regular updates
Safely Communicating dataSecure Connections Transport Layer Security (TLS) encrypts data moving over thenetwork or Internet to ensure that any body(hacker/evesdropper) willnot be able to see what is transmitting. It is useful for private andsensitive information such as passwords, credit card numbers, andpersonal correspondence.How it worksTLS uses a combination of symmetric and asymmetric cryptographyboth for better security.With symmetric cryptography, data is encryptedand decrypted with a secret key known to both sender and recipient;typically 128 but preferably 256 bits in length (anything less than 80bits is now considered insecure). Symmetric cryptography uses acommon secret key ,which is shared a secure manner.Asymmetric cryptography uses 2 keys – a public key, and a private key.The public key of the recipient to be used by the sender to encrypt thedata they wish to send to them, but that data can only be decryptedwith the private key of the recipient.Visit : python.mykvs.in for regular updates
Safely Communicating dataSecure Connections Hyper Text Transfer Protocol Secure (HTTPS) is the secure versionof HTTP, the protocol over which data is sent between your browserand the website server. HTTPS pages typically use one of twosecure protocols to encrypt communications - SSL (Secure SocketsLayer) or TLS (Transport Layer Security). Eavesdropping-eavesdropping in a man in middle attack and themessage is passing from the client to server. The solutions to thisproblem are: to encrypt the message to encrypt the channelBoth are appropriate in different situations. To preventEavesdropping in any kind of communication channel can be achievedby usage of "Secure Tunneling" of your channel data.Visit : python.mykvs.in for regular updates
Safely Communicating data Phishing-Phishing are fraudulent attempts by cybercriminals toobtain private information. For e.g.a message prompt your personalinformation by pretending that bank/mail service provider isupdating its website.There are various phishing techniques used by attackers:o Embedding a link in an email to redirect to an unsecure website thatrequests sensitive informationo Installing a Trojan via a malicious email attachmento Spoofing the sender’s address in an email to appear as a reputablesource and request sensitive informationo Attempting to obtain information over the phone by impersonating aknown company vendor.Few steps to protect against phishingDeploy a SPAM filter, Keep all systems current with the latest securitypatches and updates, Install an antivirus solution, Develop a securitypolicy, Deploy a web filter to block malicious websites, Encrypt allsensitive information.Visit : python.mykvs.in for regular updates
Safely Communicating data Identity verification methods Knowledge-Based Authentication (KBA)-by asking them toanswer specific security questions Two Factor Authentication (2FA)-not only a password andusername, but also something that the user has with them Database Solutions-behavioral patterns to detect if an online ID isauthentic, a fraudster or a bot. Online Identity Verification-A mix of artificial intelligence, computer vision,and verification experts to determine if a government-issued ID isauthentic and belongs to the user. Biometric verification -by which a person can be uniquely identified byevaluating one or more distinguishing biological traits.Visit : python.mykvs.in for regular updates
Cyber trolls & Cyber bullying Visit : python.mykvs.in for regular updates Cyber trolling is internet slang for a person who intentionally starts arguments or upsets others by posting inflammatory remarks. The sole purpose of trolling is angering people. Purpose –
Visit : python.mykvs.in for regular updates Data Handling using Pandas -1 Visit : python.mykvs.in for regular updates Python Library –Matplotlib Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python.It is used to create 1. Develop publication quality plots with just a few lines of code 2.
Computer Science Class XII ( As per CBSE Board) Chapter 5 Data-structures: lists,stack,queue New syllabus 2020-21 Visit : python.mykvs.in for regular updates. Data-structures Visit : python.mykvs.in for regular updates It a way of organizing and
Cyber Vigilance Cyber Security Cyber Strategy Foreword Next Three fundamental drivers that drive growth and create cyber risks: Managing cyber risk to grow and protect business value The Deloitte CSF is a business-driven, threat-based approach to conducting cyber assessments based on an organization's specific business, threats, and capabilities.
risks for cyber incidents and cyber attacks.” Substantial: “a level which aims to minimise known cyber risks, cyber incidents and cyber attacks carried out by actors with limited skills and resources.” High: “level which aims to minimise the risk of state-of-the-art cyber attacks carried out by actors with significant skills and .
Cyber Security Training For School Staff. Agenda School cyber resilience in numbers Who is behind school cyber attacks? Cyber threats from outside the school Cyber threats from inside the school 4 key ways to defend yourself. of schools experienced some form of cyber
the 1st Edition of Botswana Cyber Security Report. This report contains content from a variety of sources and covers highly critical topics in cyber intelligence, cyber security trends, industry risk ranking and Cyber security skills gap. Over the last 6 years, we have consistently strived to demystify the state of Cyber security in Africa.
Cyber crimes pose a real threat today and are rising very rapidly both in intensity and complexity with the spread of internet and smart phones. As dismal as it may sound, cyber crime is outpacing cyber security. About 80 percent of cyber attacks are related to cyber crimes. More importantly, cyber crimes have
electromagnetic compatibility and product safety. 5 3. Test plan Before proceeding with any testing, the vendor needs to submit a test plan for approval by the designated Project Officer, who will assess the test plan and notify the vendor in writing as to whether the test plan has been approved or rejected. If rejected or incomplete, the Project Officer will state the reason and allow the .
