How hackers googled two-step authentication

10 tips for your privacy on the Internet (PC tip 28 jan 2020)

Happy data protection day! Whether with your smartphone or PC: If you are on the Internet a lot, we have a few data protection tips to help you surf the web safely.
by Florian Bodoky, Simon Gröflin

1. Use a firewall and virus protection

2. Always import important security updates

3. Never the same password for multiple services

4. Protect personal information

5. Use two-factor authentication

6. Google yourself

7. Do not open any suspicious email attachments

8. Surf anonymously

9. Back up your data regularly

10. Do without WhatsApp and Skype

1. Use a Firewall and one Virus protection
Without up-to-date virus protection and a firewall, you shouldn't be online. Windows itself has a rudimentary virus protection on board with Windows Defender, which is activated by default. However, it does not always do well in laboratory tests.
In the case of paid products, solutions such as “Kaspersky Internet Security”, “G Data Internet Security” or “Norton Internet Security” can be used. Because a license with additional firewall protection is often not much more expensive. Important: If you have installed an antivirus program, you should update it regularly afterwards.

2. Play important securityUpdates always a
Important security updates seal up security leaks that hackers and cyber thugs quickly want to take advantage of when they become known. Also known processor gaps such as Meltdown and Specter are good reasons for important updates. In principle, the latest operating systems provide the best protection against new threats. Both Mac and PC have three effective levels of protection (operating system, software and driver), which you should check regularly for updates.

3. Never the same password for multiple services
Use complex passwords that are hard to guess - and NEVER use the same password for several important services at the same time. Use long strings consisting of several letters and symbols and a mix of upper and lower case letters. Use one password manager for multiple services.

4. Personal information protect
Also, be careful with personal information during activities such as online shopping. Those who cover themselves with private information such as telephone number, date of birth and address make it more difficult for cyber gangsters to fish for personal data. Because that is exactly what criminals aim at: for example, to get hold of personal account data by means of targeted phishing attempts.

5. Use Two factor-Authentication
If you use two-factor authentication, you add an additional level to your normal password. This is usually done via an app that is linked to your telephone number. As soon as you log into a service such as your Google account, you then have to temporarily identify yourself using an additional PIN that you can only see on your smartphone. Most social networks offer two-factor authentication, and WhatsApp or the Fritz! Box router are also capable of two-stage protection.

6. Google yourself
In social media such as Facebook and others, it is better to think twice about which circle of acquaintances a message is intended for. You can also google yourself, because Google is very curious. If you can't avoid social media like Facebook entirely, try a stripped-down Facebook profile or scour your own profile settings.

a) friends in Lists Manage: By distributing your Facebook contacts to different lists, you can easily restrict access to your content to one or more groups of people. You also have the option of creating lists for individual people in order to explicitly keep them away from certain content. For example, your boss doesn't have to find out how fun the bowling trip was last weekend. In the news feed on the left, under Discover, click Friend Lists to add or remove friends from a new list.

b) Phone number Secure: So that the phone number you have stored on Facebook does not become the next data leak in the network, you should protect it from being accessed by strangers. To do this, restrict the selection of people who are allowed to search for you on Facebook using your telephone number under Privacy in the Facebook settings of your account.

c) Apps Block: You have never played Candy Crush Saga or FarmVille and you do not intend to, but you are constantly receiving invitations to these games or notifications about the new highscore achievements of your friends in these games? Then just switch off these nerve apps. You can do this in the app settings under Settings / Apps via a central switch for apps, websites and plugins, which you can use to deactivate the platform by editing.

d) visibility of posts and photos: If you do not want all members of the social network to be able to see your Facebook posts and photos, you can limit their visibility to your friends or other contact lists. The corresponding options can be found in the Facebook settings under Privacy.

e) Old posts hide: If you haven't limited your posts to your Facebook friends or another contact list so far, you don't have to change the visibility for each post individually. In the Facebook settings under privacy you have the option to restrict past posts under your activity.

f) Photos and albums protect: The visibility of your photos and photo albums can not only be restricted in the global settings. You can also adjust the visibility directly on the picture or in the album. The drop-down menu on the photo can be used to limit visibility to friends or other lists, for example. In photo albums, you can adjust the visibility of the entire album in the same way.

g) Posts, status updates and links hide: You will find the same drop-down menu as for the photos and albums for all the posts you have created in your Facebook timeline. Regardless of whether it concerns status messages, shared links, whereabouts or videos: You can quickly hide all types of Facebook content from unauthorized persons using this small drop-down menu.

h) Friend requests restrict: To avoid harassment within the social network, you can use the friendship symbol at the top to restrict friend requests on Facebook. In the Facebook settings you have the option, for example, of only allowing friend requests from second-degree acquaintances, i.e. friends of your friends.

i) email address hide: Users can also be searched for and found in Facebook using the stored email address. However, this can be prevented very easily. To do this, call up the option under Privacy in the Facebook settings and restrict the relevant search authorization to your Facebook friends, for example.

j) Facebook profile before Google protect: Facebook profiles can also be found using Google search. If you do not want your Facebook profile to appear in the search engine hit lists, remove the checkmark in the Facebook settings. Please note: This change will not be adopted by the search engines immediately. It could take a while for your profile to disappear from Google.

7. No suspects Mail attachments to open
Phishing is getting more sophisticated. E-mail attachments are the number one gateway when it comes to stealing personal information or attempting to smuggle in malware. Never open suspicious email attachments. Some imitators are even very professional at directing you to replicated websites of well-known service providers via mail links in order to intercept account information. But you can often tell from the links that it cannot be a real URL of the provider.

8. Surf anonymous
Be careful when surfing in public WLANs! You can achieve the highest level of data security on your mobile devices abroad with a VPN to your home router. PCtipp recommends a certain reluctance to use mobile VPN apps for Android. Many apps don't encrypt traffic. There are different ways of surfing the net anonymously.

9. To back up Your data regularly
Operators and cloud providers have no insight into encrypted data. You can also encrypt your data yourself before uploading it. The operating system's resources are often sufficient for this, without additional software having to be used. When it comes to multiple folders or files, free packing programs such as 7-Zip can help. Synology, Cryptomator, DiskCryptor or BoxCryptor offer options for moving private files to the NAS or the cloud without hesitation. Instead of the US-American Dropbox giant, there are at least eight Swiss cloud alternatives.

10. Do without WhatsApp and Skype
One can wonder whether WhatsApp, which belongs to Facebook, is really the right messenger. There is also the Swiss Messenger Threema or Wire. However, the search for alternative messengers is not easy if you want to get away from WhatsApp and Skype - because communication only flows if the valued environment moves along with it.

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