Cybersecurity Primer Information Security Awareness

Cybersecurity Primer Information Security Awareness

Importance of Cybersecurity The internet allows an attacker to work from anywhere on the planet. Risks caused by poor security knowledge and practice: Identity Theft Monetary Theft Legal Ramifications (for yourself and your organization) Sanctions or termination if policies are not followed According to the SANS Institute, the top vectors for vulnerabilities available to a cyber criminal are: Web Browser IM Clients Web Applications Excessive User Rights 2

Cybersecurity is Safety Security: We must protect our computers and data in the same way that we secure the doors to our homes. Safety: We must behave in ways that protect us against risks and threats that come with technology. 3

User Awareness Cyber-Criminals Cracker: Computer-savvy programmer creates attack software Script Kiddies: Unsophisticated computer users who know how to execute programs Criminals: Create & sell bots - generate spam Sell credit card numbers, etc System Administrators Some scripts appear useful to manage networks Posts to Hacker Bulletin Board SQL Injection Buffer overflow ds Password Crackers l oa n w Do Password Dictionaries Rep o s st o P rts to Successful attacks! Crazyman broke into CoolCat penetrated Malware package earns 1K-2K 1 M Email addresses earn 8 10,000 PCs earn 1000 4

Leading Threats Viruses Worms Trojan Horses / Logic Bombs Social Engineering Rootkits Botnets / Zombies 5

Viruses A virus attaches itself to a program, file, or disk. When the program is executed, the virus activates and replicates itself. The virus may be benign or malignant but executes its payload at some point (often upon contact). Viruses can cause computer crashes and loss of data. In order to recover or prevent virus attacks: Avoid potentially unreliable websites/emails. System Restore. Re-install operating system. Use and maintain anti-virus software. Program A Extra Code infects Program B 6

Worms Independent program that replicates itself and sends copies from computer to computer across network connections. Upon arrival, the worm may be activated to replicate. To Joe To Ann To Bob Email List: [email protected] [email protected] [email protected] 7

Logic Bombs and Trojan Horses Logic Bomb: Malware logic executes upon certain conditions. The program is often used for otherwise legitimate reasons. – Examples: – Software which malfunctions if maintenance fee is not paid. – Employee triggers a database erase when he is fired. Trojan Horse: Masquerades as a benign program while quietly destroying data or damaging your system. – Download a game: It may be fun but contains hidden code that gathers personal information without your knowledge . 8

Social Engineering Social engineering manipulates people into performing actions or divulging confidential information. Similar to a confidence trick or simple fraud, the term applies to the use of deception to gain information, commit fraud, or Email: access computer systems. ABC Bank has noticed a Phone Call: problem with This is John, In Person: your account the System Administrator. What What is your ethnicity are I have password? you? Your come to mother’s repair your and have maiden machine some name? lovely software patches! 9

Phishing: Counterfeit Email Phishing: A seemingly trustworthy entity asks for sensitive information such as SSN, credit card numbers, login IDs or passwords via e-mail. 10

Pharming: Counterfeit Web Pages Misspelled Copyright date is old Wiping over, but not clicking the link may reveal a different address. With whom? The link provided in the e-mail leads to a counterfeit webpage which collects important information and submits it to the owner. The counterfeit web page looks like the real thing – Extracts account information 11

Botnet A botnet is a number of compromised computers used to create and send spam or viruses or flood a network with messages as a denial of service attack. The compromised computers are called zombies. 12

Man In The Middle Attack An attacker pretends to be your final destination on the network. When a person tries to connect to a specific destination, an attacker can mislead him to a different service and pretend to be that network access point or server. 13

Rootkit Upon penetrating a computer, a hacker may install a collection of programs, called a rootkit. May enable: Easy access for the hacker (and others)into the enterprise Keystroke logger Eliminates evidence of break-in. Modifies the operating system. Backdo or Keystro entry ke Logg er ser u en d d Hi 14

Password Cracking Dictionary Attack and Brute Force Pattern Calculation Personal Info: interests, relatives Social Engineering American Dictionary Result Time to Guess (2.6x1018 tries/month) 20 Manual 5 minutes 1 Manual 2 minutes 80,000 1 second 4 chars: lower case alpha 264 5x105 8 chars: lower case alpha 268 2x1011 8 chars: alpha 528 5x1013 8 chars: alphanumeric 628 2x1014 3.4 min. 8 chars alphanumeric 10 728 7x1014 12 min. 8 chars: all keyboard 958 7x1015 2 hours 12 chars: alphanumeric 6212 3x1021 96 years 12 chars: alphanumeric 10 7212 2x1022 500 years 12 chars: all keyboard 9512 5x1023 16 chars: alphanumeric 6216 5x1028 15

Georgia Data Breach Notification Law O.C.G.A. §§10-1-910, -911, -912 An unauthorized acquisition of electronic data that compromises the security, confidentiality or integrity of “personal information.” Personal Information Social Security Number. Driver’s license or state ID number. Information permitting access to personal accounts. Account passwords or PIN numbers or access codes. Any of the above in connection with a person’s name if the information is sufficient to perform identity theft against the individual. 16

Identifying Security Compromises Symptoms: Antivirus software detects a problem. Disk space disappears unexpectedly. Pop-ups suddenly appear, sometimes selling security software. Files or transactions appear that should not be there. The computer slows down to a crawl. Unusual messages, sounds, or displays on your monitor. Stolen laptop: 1 stolen every 53 seconds; 97% never recovered. The mouse pointer moves by itself. The computer spontaneously shuts down or reboots. Often unrecognized or ignored problems. 17

Malware detection Spyware symptoms: Changes to your browser homepage/start page. Ending up on a strange site when conducting a search. System-based firewall is turned off automatically. Lots of network activity while not particularly active. Excessive pop-up windows. New icons, programs, favorites which you did not add. Frequent firewall alerts about unknown programs when trying to access the Internet. Poor system performance. 18

Best Practices to avoid these threats Defense in depth uses multiple layers of defense to address technical, personnel and operational issues. User Account Controls 19

Anti-virus and Anti-spyware Software Anti-virus software detects certain types of malware and can destroy it before any damage is done. Install and maintain anti-virus and anti-spyware software. Be sure to keep anti-virus software updated. Many free and commercial options exist. Contact your Technology Support Professional for assistance. 20

Host-based Firewalls A firewall acts as a barrier between your computer/private network and the internet. Hackers may use the internet to find, use, and install applications on your computer. A firewall prevents many hacker connections to your computer. Firewalls filter network packets that enter or leave your computer 21

Protect your Operating System Microsoft regularly issues patches or updates to solve security problems in their software. If these are not applied, it leaves your computer vulnerable to hackers. The Windows Update feature built into Windows can be set up to automatically download and install updates. Avoid logging in as administrator Apple provides regular updates to its operating system and software applications. Apply Apple updates using the App Store application. 22

Use Strong Passwords Make passwords easy to remember but hard to guess USG standards: Be at least ten characters in length Must contain characters from at least two of the following four types of characters: – – – – English upper case (A-Z) English lower case (a-z) Numbers (0-9) Non-alphanumeric special characters ( , !, %, , ) Must not contain the user’s name or part of the user’s name Must not contain easily accessible or guessable personal information about the user or user’s family, such as birthdays, children’s names, addresses, etc. 23

Creating Strong Passwords A familiar quote can be a good start: “LOVE IS A SMOKE MADE WITH THE FUME OF SIGHS” William Shakespeare Using the organization standard as a guide, choose the first character of each word: LIASMWTFOS Now add complexity the standard requires: L1A mwTF0S (10 characters, 2 numerals, 1 symbol, mixed English case: password satisfies all 4 types). Or be more creative! 24

Password Guidelines Never use admin, root, administrator, or a default account or password for administrative access. A good password is: – Private: Used by only one person. – Secret: It is not stored in clear text anywhere, including on Post-It notes! – Easily Remembered: No need to write it down. – Contains the complexity required by your organization. – Not easy to guess by a person or a program in a reasonable time, such as several weeks. – Changed regularly: Follow organization standards. Avoid shoulder surfers and enter your credentials carefully! If a password is entered in the username field, those attempts usually appear in system logs. 25

Avoid Social Engineering and Malicious Software Do not open email attachments unless you are expecting the email with the attachment and you trust the sender. Do not click on links in emails unless you are absolutely sure of their validity. Only visit and/or download software from web pages you trust. 26

Avoid Stupid Hacker Tricks Be sure to have a good firewall or pop-up blocker installed. Pop-up blockers do not always block ALL pop-ups so always close a pop-up window using the ‘X’ in the upper corner. Never click “yes,” “accept” or even “cancel.” Infected USB drives are often left unattended by hackers in public places. 27

Secure Business Transactions Always use secure browser to do online activities. Frequently delete temp files, cookies, history, saved passwords etc. https:// Symbol indicating enhanced security 28

Backup Important Information No security measure is 100% reliable. Even the best hardware fails. What information is important to you? Is your backup: Recent? Off-site & Secure? Process Documented? Encrypted? Tested? 29

Cyber Incident Reporting If you suspect a cybersecurity incident, notify your organization’s help desk or the USG ITS help desk immediately. Be prepared to supply the details you know and contact information. 1. Do not attempt to investigate or remediate the incident on your own. 2. Inform other users of the system and instruct them to stop work immediately. 3. Unless instructed, do not power down the machine. 4. Unless instructed, do not remove the system from the network. The cybersecurity incident response team will contact you as soon as possible to gather additional information. Each USG organization is required to have a specific plan to 30 handle cybersecurity incidents. Refer to local policies, standards and guidelines for specific information.

Fraud Organizations lose 5-6% of revenue annually due to internal fraud 652 Billion in U.S. (2006) Average scheme lasts 18 months, costs 159,000 25% costs exceed 1M Smaller companies suffer greater average dollar losses than large companies Internal Fraud Recovery 0 Recovered Recovery 25% Substantial Recovery Essentials of Corporate Fraud, T L Coenen, 2008, John Wiley & Sons 31

Fraud Discovery % How Fraud is Discovered 40 35 30 25 20 15 10 5 0 Tip By Accident Internal Audit Internal Controls External Audit Notified by Police Tips are the most common way fraud is discovered. Tips come from: – Employee/Coworkers 64%, – Anonymous 18%, – Customer 11%, – Vendor 7% If you suspect possible fraud, report it anonymously to the USG ethics hot line at 877-516-3466. Essentials of Corporate Fraud, T L Coenen, 2008, John Wiley & Sons 32

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