Is 2nd line app safe? Yes, it is safe to use 2nd line app. However, there are some risks that you should be aware of before using the app. The first risk is that you could be scammed. Many people have been scammed in the past by online marketers who promise them high-yield investments or other valuable items if they sign up for their services. Be sure to do your research before signing up for any online service, especially if it seems too good to be true. Another risk is that your data could be stolen. If someone gets your personal information, such as your name and address, they could use it to scam you or worse. Be sure to keep all of your personal information secure and never share it with anyone you don’t know well.