BianKO account security at a glance
| Topic | What the site says | Where |
|---|---|---|
| OTP | "Hesap güvenliğiniz için OTP sistemini kullanmanız tavsiye edilir." (OTP is recommended for your account security.) | Banner on every inner page |
| OTP and liability | Accounts not using OTP are the user's responsibility | User agreement, point 3 |
| Sharing details | Account details are not to be shared; if you share them, it's on you | User agreement, point 3 |
| Password | 2–13 characters, required | Sign-up form |
| Item lock password | Required, up to 8 characters | Sign-up form |
| Secret question and answer | Required; 6 question options, answer 2–50 characters | Sign-up form |
| ID and password | Don't use an ID or password you've used on other servers | Sign-up form warning |
| Forgot password | A "Şifreni mi unuttun?" (forgot your password?) link | Login page |
OTP: recommended, but the risk is yours
The OTP notice sits in the top banner of every inner page on BianKO's site, so it's a recommendation, not a requirement. Point 3 of the user agreement spells out the catch: if an account without OTP gets hit, the user carries the responsibility.
The site doesn't explain how to turn OTP on or which app it uses, and the sign-up form has no OTP field. The launch post of the older ODIN server in 2023 also recommended OTP (2FA) for account security.
Item lock password and secret question
Sign-up asks for an item lock password on top of your account password; it's required and can be up to 8 characters. The site doesn't say which in-game actions ask for it, so it makes sense to pick something different from your login password.
The secret question is required too, chosen from 6 options, with an answer of 2–50 characters:
- A cartoon character
- Your first computer game
- A superhero
- Your first teacher
- Your mother's maiden name
- Your first pet
The site doesn't say when the secret question is used, for example whether password recovery asks for it. For resets, the login page has a "Şifreni mi unuttun?" (forgot your password?) link.
Don't reuse another server's password
The sign-up form warns you plainly not to use an ID or password you've used on other servers. Usernames are 2–21 characters and passwords 2–13; email is required, phone is optional. As a general habit, keeping game and email passwords unique stops one leaked password from opening all your accounts.
Scams and account trading: what the agreement says
- Point 2: stealing items or accounts through scams in game, or trying to, is banned.
- Point 3: account details are not to be shared; sharing is at your own risk.
- Point 6: trading GB, items, characters or KC for real money is strictly banned; accounts caught doing it are banned indefinitely.
- Point 5: every third-party program is banned; only key-combo software built into hardware like mice and pedals is allowed.
Point 6 is a security issue too: buying a character for money breaks the rules, and once caught the accounts are banned indefinitely.
Phone number and SMS consent at sign-up
The phone field is optional (10–15 characters, example +905541231212). At the end of the form, the SMS notification consent and the "Kişisel verileriniz BianKO tarafından korunmaktadır" (your personal data is protected by BianKO) boxes are pre-ticked and required, and you accept the user agreement before registering.
FAQ
Is OTP mandatory on BianKO?
What if I forget my item lock password?
Can I share my account with a friend?
Is it safe to buy a character on BianKO?
Related guides
- How to register on BianKO: sign-up form fields, password limits and OTP
- BianKO rules: what gets you banned under the 8-point user agreement
- How many clients can you open on BianKO: 3 per PC, 6 characters per IP
- BianKO FAQ: starting level, client limit, +8 upgrade chance and premium prices
- BianKO beginner guide: what to do first when you start at level 83




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