The document discusses online security and emphasizes the importance of safe practices, such as avoiding spam emails and using secure payment systems. It advises against using common or simple passwords and recommends creating complex or randomly generated passwords. Additionally, it highlights the risks of disguised links that can lead to fake websites, warning readers to be cautious about sharing personal information online.

1. Online Security:
How to stay safe
Duc Le

2. Let’s get it clear…
You can’t.
Even when you wear
a “digital condom”.

3. Spam Email

4. Which of these are not
Spam?

5. Word, Excel, Powerpoint
can contain viruses.

6. Suggest: Use Office on the internet with
Google Drive applications: Free, No virus.

7. Spam Application

8. False Rumors --- Like + Vote

9. Check what
applications
you have
installed
into your
Facebook
account

11. Fraud account + message

12. How it works
Website
www.naptien.vn
Your phone
number
Fake SMS
TELCO
number 7778

13. 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

14. Online Payment

15. 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

16. 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/

17. 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 words
o Easy to remember
o Hard for computer

18. E-mail link disguises and tricks
• Web server ignores all characters preceding
“@”
• Example of disguised link:
https://www.paypal.com@218.36.41.188/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