Does Bovada switch lines after login?

Hey all -- I've been watching the O/U this week for the Super Bowl.  Every time I open the Bovada website or mobile app I get one number, but when I log in I get a different number.  Do they switch the lines on you when you log in? 

Example:  right now when I open the Bovada home page the Under is 48 (-115).  When I log in it magically switches to 48 (-120).  When I log out it goes back to -115.  It did the same thing earlier this week, switching between -115 and -110. 

Does Bovada analyze my past betting, know that I like betting Unders, and alter my odds when I login?  I hate to be paranoid but it seems plausible.  Wondering if anyone else has experienced the same. 

yes, they've been doing this to me for years and other people I know.

Those person.  Thanks, good to know it's widespread and part of how they operate.

Congrats - Bovada considers you sharp! They have 2 sets of lines, ones for squares and one for sharps. All the accounts start out as "square" accounts (these are the lines you see before you sign in). If you do well, they switch you to the "sharp" account, which usually has the favorites be favored a half point less or so and the totals be a half-point lower or so.