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public wifi question

post #1 of 3
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I heard it's not safe to use public free wifi, that it's not encrypted and people can steal your information. Is that true? Is that also true if I sign into websites that have https?
2014
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2014
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5-4460 3.2GHz ASRock H97 Pro4 MSI GTX 1060 Armor 6G OC G.SKILL Sniper 2X4GB 1.25V 
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SanDisk Ultra II 240GB SSD Seagate Barracuda 2TB 7.2K-RPM 64MB ASUS SATA 24X DVD Burner Cooler Master Hyper 212 EVO 
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Windows 10 Home 64bit ASUS VS24AH-P 24'' IPS 5ms 1920x1200 WASD V2 TKL Rosewill CAPSTONE 550W 80 Plus Gold 
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Fractal Design Define R4 Black Pearl Logitech G602 FiiO E10K USB DAC+Headphone Amplifier Swan M50W 2.1 
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Philips Fidelio X2 
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post #2 of 3
Short answer : Not if your using HTTPS, this is layer 7 and is at the top o the OSI stack

Long answer : "If" There is a evil person on the public wifi at the same time, and / or said owner of the public wifi point is evil then there is a possibility that they could be screwing with the interwbs to steal your data, at the end of the day you just dont know what or who is sharing the network with you. You also have to be carefulll as some AP's wont have AP isolation leading to one big happy breading ground for worms / the evil person to attack your unpatched pc, however these senioros are unliley so not usualy a issue. I still would resist doinf banking on them though ... and maybe adding 2 factor auth on anything you do want to use over it
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Escobar
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post #3 of 3
You'd ideally want to use some sort of VPN or tunnel over SSH, or HTTPS websites. If you get the green lock in your address bar, the certificate came back from the correct server and your session is encrypted between you and the server.

You can sit outside of an open network and just grab packets out of the air, you don't need to even be associated to the same network to grab everyone's data. If you're using clear text sites (standard HTTP and not HTTPS in the URL bar), they can see where you go and what data is sent back and forth. Even something like non-https Facebook will give out cookie data that they can use to log into your account.
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