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Online Security: How to stay safe
Duc Le
Let’s get it clear…
You can’t. Even when you wear
a “digital condom”.
Spam Email
Which of these are not Spam?
Word, Excel, Powerpointcan contain viruses.
Suggest: Use Office on the internet with
Google Drive applications: Free, No virus.
Spam Application
False Rumors --- Like + Vote
Check what
applications
you have
installed
into your
account
Fraud account + message
How it worksWebsite
www.naptien.vn
Your phone number
Fake SMSTELCO
number 7778
Online Payment System• Ngân Lượng
• Bảo Kim
• 1Pay
• SohaPay
• WebMoney Vietnam
• Payoo
• Paypal
• Google Wallet
=> Don’t pay on any insecure site
Buyer
$
Payment System
i
Seller
Goods Delivery
$
i1
Place Order
0
2
3
4
5
Online Payment
DON’T take picture of your bank card
If you want to show off, at least hide the card number, expiry date, and other info
Also, do NOT put your personal data such as ID number, Driver license or Passport number online
Don’t use simple passwords.
Don’t use 1 password for everything
The 25 most common passwords of 2013 (ranking changes)
1. 123456 (Up 1) 10. adobe123 (New) 19. sunshine (Down 5)
2. password (Down 1) 11. 123123 (Up 5) 20. 12345 (New)
3. 12345678 (Unchanged) 12. admin (New) 21. password1 (up 4)
4. qwerty (Up 1) 13. 1234567890 (New) 22. princess (New)
5. abc123 (Down 1) 14. letmein (Down 7) 23. azerty (New)
6. 123456789 (New) 15. photoshop (New) 24. trustno1 (Down12)
7. 111111 ( Up 2) 16. 1234 (New) 25. 000000 (New)
8. 1234567 (Up 5) 17. monkey (Down 11)
9. iloveyou (Up 2) 18. shadow (Unchanged)
Source: http://www.cbsnews.com/news/the-25-most-common-passwords-of-2013/
Best way to set passwords• Password with different
conditions (capital letters,
numbers, symbols…)o Hard to remember
o Easy for computer to guess
• Password with random
common wordso Easy to remember
o Hard for computer
E-mail link disguises and tricks• Web server ignores all characters preceding
“@”
• Example of disguised link:https://[email protected]/fl/login.html
o In the link above, www.paypal.com is ignored by the web
browser due to the symbol @. Instead, the browser will take
you to the IP address “218.36.41.188” – this is a fake
website.
• Links may say one website but it takes you to
another website: http://eepurl.com/-0hPv
