How do I recover my hacked Telegram account and reset the password?

Telegram is not an Apple product. Contact the app developer here --> App Support or Telegram support

Having said that...

A third-party app Account can be compromised through multiple avenues beyond iOS devices. Here are some common ways attackers can gain access:

1. Windows PCs

• Keyloggers & Malware: If the App is used on a compromised Windows PC, malware or keyloggers can capture login credentials.
• Phishing Emails & Fake Websites: Attackers often send emails pretending to be from the App, tricking users into entering their credentials on fraudulent sites.
• Man-in-the-Middle (MITM) Attacks: If a Windows PC is connected to an insecure or compromised network, attackers can intercept login details.

2. Web Browsers

• Phishing Websites: Fake App login pages can trick users into entering their credentials.
• Credential Stuffing: If the user’s account password is the same as one from a previous data breach, attackers can use automated tools to try those credentials on the App’s login page.
• Browser Extensions & Spyware: Malicious browser extensions or spyware can capture saved passwords or typed credentials.

3. Other Devices (Macs, Android, etc.)

• Public/Shared Computers: Logging into an App on a public or shared computer without logging out properly can leave credentials exposed.
• Compromised Android Devices: If an App is used on an Android device with malware, login details can be stolen.
• Weak Security on Other Devices: If an App is linked to an email account that lacks strong security (e.g., no two-factor authentication), an attacker could gain access by resetting the App password.

If you feel an unauthorized person/app is remotely using, controlling or monitoring your device, then that is possible only if you have done one or more of the following Don'ts...

1. Don't hand over an iPhone to kids or to a stranger without Enabling Guided Access
2. Don't share Apple IDs
3. Don't Jailbreak
4. Don't share sensitive information pertaining to your device
5. Don't give in to Phishing
6. Don't plug in your device in Airports and Public places through third-party cables and trust the device. Beware of Juice Jacking. (Especially in India)
7. Don't leave your iPhone unlocked and unattended in public places like offices, schools, malls, etc.

If one of the above is true then quickly change the Apple ID Password and Return iPhone settings to their defaults.

The app developer may not have updated their software to ensure compatibility with the iOS version your device is currently running.

If you encounter any challenges with third-party applications, the best course of action is to directly contact the app developer for further assistance. Here's a brief guide on how to do it:

1. Identify the app developer.
2. Visit their website or app store listing.
3. Look for their contact information or support channels.
4. Clearly describe the issue you are facing.
5. Provide any necessary information they may need.
6. Follow their instructions and provide feedback.
7. Be patient and follow up if needed.

By reaching out to the app developer, you increase your chances of receiving accurate and personalized support for the challenges you're experiencing. To contact an App developer --> How to contact an app developer - Apple Support