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Privacy Policy

Effective November 10, 2026

What we collectHow we use itCookies and storageWho we share it withHow long we keep itYour choicesSecurityChildrenChangesContact

This policy covers mythosclient.net and the Mythos client's activation service. "We" means the team that runs Mythos. If you have a question, email mythosclientnet@gmail.com.

What we collect

Your account

  • Email address. You give it to us when you sign up. It's your login and how we match a payment to your account.
  • Password. We store a salted PBKDF2 hash. We can't read your password.
  • Plan details. Which plan you bought, when it started and when it ends.

Your activated PC

  • Hardware fingerprint. The client hashes a set of hardware identifiers on your PC and sends us only the SHA-256 result. We never receive the raw identifiers.
  • Device key. When you activate, the client creates a key pair. We store a hash of the public key so we can recognize that PC.
  • Check-in times. We record when you activated and when the client last checked in, about every five minutes while you play.
  • Activation key. We store a hash of it, not the key.

Payments

SellAuth runs checkout. You give your payment details to SellAuth and its payment processors, not to us. SellAuth tells us the email, plan and order ID for each completed order. When you start a checkout, we send your account email to SellAuth so it can link the order to your account.

Technical data

Cloudflare hosts the site. Like any web host, it processes your IP address, browser user agent and request details to deliver pages, stop abuse and keep short-lived logs. We use your IP address to rate-limit logins and activations. We don't store it in our database.

Analytics

We use Cloudflare Web Analytics to count page views and measure load times. It sets no cookies and doesn't build a profile of you. It doesn't run on the owner dashboard.

How we use it

  • Run your account and keep you signed in.
  • Give you your plan, activation key and downloads after you pay.
  • Enforce one PC per plan and stop key sharing or resale.
  • Block brute-force logins, spam sign-ups and other abuse.
  • Answer you when you email us.

We don't sell your data. We don't use it for ads. We don't send marketing email.

Cookies and storage

NameTypePurposeLasts
__Host-mythosCookieKeeps you signed in. HttpOnly and HTTPS only.30 days, or until you sign out
mythos-signed-inLocal storageShows the right header buttons without a flicker.Until you sign out
mythos-gui-v1Local storageRemembers the theme and toggles you picked in the live preview.Until you clear it
mythos-glideSession storageScrolls you to the right section after a link from another page.Removed on use

All of these are needed for the site to work, so we don't ask for consent to set them. We use no advertising or tracking cookies.

Who we share it with

  • Cloudflare hosts the site, the database and the downloads.
  • SellAuth and its payment processors handle checkout.
  • Authorities, if the law requires us to share data or we need to protect our rights.

These providers may process data outside your country. They protect it under their own terms and policies.

How long we keep it

  • Account and plan data: until you ask us to delete your account.
  • Device data: until you deactivate the PC, or until we delete your account.
  • Sign-in sessions: 30 days, then we delete them.
  • Activation challenges: a few minutes, then we delete them.
  • Order records: as long as tax and payment rules require.

Your choices

You can deactivate your PC from your dashboard at any time. To get a copy of your data, correct it or delete your account, email us from the address on your account. We reply within 30 days. Depending on where you live, you may have more rights under laws like the GDPR or CCPA, and you can complain to your local data protection authority.

Security

We serve the site over HTTPS only. We hash passwords, keys and hardware fingerprints, and we sign activation leases so nobody can forge them. No system is perfectly secure. If we learn of a breach that affects you, we'll email you.

Children

Mythos is not for children under 13, and we don't knowingly collect their data. If you think a child under 13 made an account, email us and we'll delete it.

Changes

If we change this policy, we'll update the date at the top. For big changes we'll also post a notice on the site.

Contact

Email mythosclientnet@gmail.com.

Mythos0.1.3

A Fabric client for crystal and anchor PvP on Minecraft 1.21.11.

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