How to encrypt emails in Yahoo—a comprehensive guide

Learn how to encrypt emails in Yahoo and prevent unauthorized access to your messages. Our detailed guide teaches you about email privacy and ways to ensure it!
Over 220 million people use Yahoo Mail, making the company a major industry player—despite the questionable security protocols associated with this email service. Like other industry giants, Yahoo sparks concerns regarding email privacy and data mining business practices.As a Yahoo Mail user, you should learn how to encrypt emails in Yahoo and keep your online correspondence safe from prying eyes. This detailed guide will teach you:
  • How to send a secure email with Yahoo
  • What email encryption protocols are the most secure
  • Which encrypted Yahoo Mail alternative is the best
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How to send an encrypted email in Yahoo Mail

Yahoo Mail doesn’t have a great track record regarding email encryption and security. You cannot encrypt an email in Yahoo, at least not natively, through the platform.Yahoo uses Transport Layer Security (TLS) encryption protocol to secure the connection between you and the recipient's email server. Every email you send via Yahoo Mail has TLS enabled by default, so there are no additional steps—the encryption is applied automatically.
Source: TechCrunchThis encryption protocol will protect your email data while transiting between servers, but it won’t prevent unauthorized access when your messages are at rest on a server. That kind of protection requires a stronger email encryption method.

What type of email encryption is the best?

Most email service providers use one of the following encryption protocols:
Email encryption protocolDescription
Transport Layer Security (TLS)Secures the connection between email servers
Secure/Multipurpose Internet Mail Extensions (S/MIME)Encrypts the messages themselves
Compared to TLS, the S/MIME protocol ensures a higher level of security by encrypting the contents of the emails, which can only be accessed with a unique decryption key. If hackers gained access to an email server, they’d still need the key to read your messages.Gmail, Outlook, and other mainstream email platforms provide S/MIME with higher-tier subscriptions. Unfortunately, this protocol requires installing a separate S/MIME certificate—a complex and time-consuming process for the average email user.S/MIME isn’t the most secure encryption protocol because the decryption keys are stored on the provider’s servers. If someone compromised these servers, they could decrypt your emails as well.The most effective method of protecting your online correspondence is end-to-end encryption (E2EE). True end-to-end encryption ensures email security even in a server attack by protecting your messages before they leave your device and reserving access to decryption keys to recipients only. The best way to guarantee the safety of your email correspondence is to switch to a provider offering E2EE as part of its core service.

Why you should consider leaving Yahoo Mail

Yahoo Mail has several problems affecting its service quality:
  1. Lack of email security
  2. Email privacy concerns
  3. Absence of productivity tools

Lack of email security

Yahoo Mail does not provide ways to password-protect your most sensitive emails or attachments. You can install a third-party browser extension to access these features with your Yahoo Mail, but they’re not as reliable as email services with built-in security options.Using an extension for password protection or encryption means entrusting a third party with your email data. Your password and encryption key would be stored on their servers, creating another weak point for hackers to use.The reliability of browser extensions varies. While Google and other browser developers oversee extension authors, they don’t go through rigorous background checks.In practice, many seemingly trustworthy browser extensions have turned out to be malware in disguise—especially those with popular functions, like ad blockers. Malware-ridden extensions create vulnerabilities that hackers exploit via server attacks or collect your login credentials through hidden keystroke recorders.Server attacks aren’t a hypothetical scenario—they’ve happened to Google, Microsoft, Amazon, and Apple. The same goes for Yahoo, which has experienced multiple data breaches in the past. In 2014, hackers stole data from 500 million Yahoo Mail users.

Privacy concerns

Users of prominent email service providers have continuously raised concerns about data privacy on these platforms.Yahoo Mail is no exception, as it collects huge amounts of user data for various purposes, such as:
  1. Generating business insights
  2. Improving their services
  3. Ad targeting
In the process, the Yahoo Mail platform scans your:
  • Contacts
  • Email attachments
  • Messages
  • Metadata
The provider targets users with free accounts with ads based on data collected from their email correspondence. You can remove the ads by paying for a Yahoo Mail Plus subscription, but that doesn’t stop the provider from reselling or sharing your data with third parties.Email service providers that don't use E2EE encryption can freely mine your emails for data, including your IP address, timestamps, recipients, and device identifiers.
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Absence of productivity tools

Industry giants like Google and Microsoft roll their email clients into a wider package of productivity tools. The result is an integrated digital workspace that allows users to seamlessly move from app to app and automatically share relevant data.Outlook is a part of Office 365, which includes Microsoft Word, Excel, One Drive, PowerPoint, and Teams. Gmail integrates with Google’s other productivity apps, bundled in Google Workspace. The package incorporates Google Calendar, Keep, Meet, and Sheets.Yahoo’s features can’t compete with these providers as the service doesn’t come with a similar suite. The scheduling and contact management options within Yahoo Mail are simple in comparison with the advanced features and integrations supported by the competitors.If you’re looking for an email service with all the productivity features of mainstream providers without their security vulnerabilities, opt for an E2E encrypted email service like Skiff Mail.

Prioritize your security with Skiff Mail

Skiff Mail is an E2EE-enabled email service that provides cutting-edge security to your online correspondence. The platform is a superior choice to Yahoo Mail and other mainstream email providers because it offers:
  • Device-based email encryption
  • Complete guarantee of privacy
  • Modern productivity suite

Skiff Mail uses powerful device-based email encryption

Skiff protects emails with a set of encryption keys, one for encrypting and the other for decrypting the message. The latter is generated by the recipient and stored exclusively on their device, protecting from any unauthorized access.Even if Skiff’s servers were hacked, the attackers would never gain access to your emails since the decryption keys are not stored there.Yahoo Mail requires you to install third-party browser extensions for basic encryption features, while other mainstream platforms offer only S/MIME protection. Skiff’s encryption is fully automated, enabled by default, and requires no input from you.Even the login credentials for your Skiff account are encrypted and stored on your device, preventing unauthorized access. If you want to ensure maximum security, you can enable two-factor authentication.
Source: Skiff

Skiff guarantees complete email privacy

Skiff doesn’t have access to the contents of your emails—only you and the intended recipient can read them.The provider doesn’t use your private messages to deploy targeted ads or sell your data to third-party advertisers. The emphasis is on your security, which Skiff never compromises for additional profit.Skiff offers practical user privacy measures like email aliases. You can create up to four email aliases with a free Skiff account, allowing you to register at any website without revealing your actual email address. A paid Skiff subscription provides up to 15 aliases.This feature makes it easier to organize your inbox, as you can use it as a filter. For example, you could use one alias on shopping websites and only get promotions sent to its specific folder.You can get a custom domain with Skiff to make your email address appear more professional. The feature is available from Skiff’s mail settings, which take you to a browsing screen to see which custom domains are available.The platform supports integration with popular crypto wallets such as:This feature is an important security measure and allows for complete anonymity in online transactions.

Skiff provides a full E2EE productivity suite

Skiff provides a full-fledged productivity suite on par with Google Workspace and Microsoft 365 and ahead of Yahoo’s email-only service.Besides Skiff Mail, the free account gives you access to:All four Skiff products have modern, streamlined UIs and are available on Android and iOS devices.While you can access all Skiff apps with a free account, the three paid plans provide even more aliases, storage space, and custom domains.Yahoo Mail can’t compete with Skiff’s built-in security measures, user-centric privacy policies, or integrated productivity tools.For example, Skiff Pages let you password-protect any document. You can do this in a few simple steps:
  1. Create a document in Skiff Pages
  2. Navigate to the three dots menu in the top right corner
  3. Click Add Lock
  4. Enter a password
  5. Click Lock
After this, it only takes a few clicks to switch to Skiff Mail and attach the password-protected document to an encrypted email.

Create a free Skiff account in minutes

Creating your Skiff account is easy:
  1. Visit the signup page
  2. Enter your desired username and password
  3. Start using Skiff Mail and other tools from the productivity suite
If you’re interested in learning more about the technology behind Skiff, check out this whitepaper. Skiff is 100% open source and transparent, so all the information is freely available on GitHub. The Skiff developers also frequently answer direct questions on the official Discord channel.

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