Hello, Florofill! Welcome to Wikipedia! Thank you for your contributions. You may benefit from following some of the links below, which will help you get the most out of Wikipedia. If you have any questions you can ask me on my talk page, or place {{helpme}} on your talk page and ask your question there. Please remember to sign your name on talk pages by clicking or by typing four tildes "~~~~"; this will automatically produce your name and the date. If you are already excited about Wikipedia, you might want to consider being "adopted" by a more experienced editor or joining a WikiProject to collaborate with others in creating and improving articles of your interest. Click here for a directory of all the WikiProjects. Finally, please do your best to always fill in the edit summary field when making edits to pages. Happy editing! —k6ka🍁 (Talk · Contributions) 03:18, 14 July 2016 (UTC)[reply]
I've blocked your account as compromised; If they know your password, they can access any version of Wikipedia as they all use the same login information. Please see WP:COMPROMISED for information on what to do. 331dot (talk) 16:53, 14 October 2018 (UTC)[reply]
If you're simply worried about the welcome messages you've received on other wikipedias/or the fact that you have accounts on other wikipedias - don't, accounts are automatically created when you visit another wikipedia Galobtter (pingó mió) 16:57, 14 October 2018 (UTC)[reply]
Thank you for your carefulness @331dot:, but I'm not sure if this is a useful step now. The notifications I have saying that someone has attempted to access my account were already 2 months ago, and now I have changed my password (as I could still access my profile, so they hadn't changed my password). I even have some suspections about who it could be, as there was a school project where I had to show my Wikipedia profile, so some of the children might have just started to try to figure out my password - which was, apparently, not quite strong. The article you mentioned states that I would have to prove that - well - I am I. One possibility that I see is that I started my account using my real name, which must be there somewhere in the history of some pages where I had my signature. Could this work some way? I wouldn't loose much if I had to delete this account, but still it would be bad to loose it - you understand.
Florofill (talk) 17:53, 14 October 2018 (UTC)[reply]
It is actually this talk page (in Hungarian, the last paragraph): Florofill talk page
Other than welcome messages, do you have reason to believe edits were made under your account of which you were not aware, and either way, have any happened since you changed your password? 331dot (talk) 19:16, 14 October 2018 (UTC)[reply]
Based on [1] ("User:Crow's explanation"), I've unblocked you. Even if your account has been compromised by your schoolmates, you should be able to fix the problem by changing your password. If you find that you're barred from changing it, or you believe that there's something more sinister than schoolmates guessing your password, let me know and I'll reblock you, but between the WP:SUL likely explanation and the fact that you'd rather not lose your account, I'm uncomfortable leaving you blocked. Nyttend (talk) 21:44, 14 October 2018 (UTC)[reply]
@331dot No, I don't think so, neither after the login attempts, nor after having changed my password yesterday were any edits made by my account, and since the login attempts were a long time ago, I feel it safe to retain my account.Florofill (talk) 09:15, 15 October 2018 (UTC)[reply]