Using emojis in passwords: advantages, disadvantages, and how to do it right

Passwords are that necessary evil we all have to deal with daily: they're slow to type, easily forgotten, and increasingly demanding. However, access to our bank accounts, email, social media, and cloud services depends on them, so no matter how cumbersome they may be, they remain a cornerstone of our digital security.

In recent years, a curious and eye-catching idea has started to gain popularity: using emojis in passwords . These little icons, which are already part of our everyday language, can become an extra ingredient to strengthen our passwords. But to what extent is this a good idea? What real advantages do they offer, and what significant drawbacks do they have? Let's take a closer look.

Why is there so much talk about using emojis in passwords?

One of the biggest problems with traditional passwords is that, to be secure, they must be long, complex, unique, and changed regularly . Many experts recommend changing them at least every three months and not reusing them across different services, something very few people actually do because it's difficult to manage and remember.

Studies by cybersecurity companies like Kaspersky have shown that a significant percentage of users don't even change their passwords regularly . In some Latin American countries, for example, around 15-23% of people admit to not updating their passwords, which significantly increases the risk of becoming a victim of cybercrime.

In this context, the idea of ​​adding emojis to passwords has emerged. These icons aren't just simple drawings: they're part of the Unicode standard , the character encoding system used on the internet and in most operating systems . This means that, technically, emojis are treated as characters just as valid as letters, numbers, or punctuation marks.

Experts who support their use argue that, when used correctly, emojis can help create stronger and easier-to-remember passwords . But, as is often the case with security, it's not all as rosy as it seems: there are also drawbacks related to compatibility, usability, and the risk of errors when entering them.

Advantages of using emojis in passwords

The first major advantage lies in the sheer variety of emojis available in Unicode . While a typical character set (uppercase and lowercase letters, digits, and a few symbols) offers at most around a hundred possibilities per position, the standard emoji catalog far exceeds 3.600 icons, and can even approach 3.700 variations if we consider skin tone, gender, and other modifiers.

From a mathematical perspective, this means that each emoji adds significantly more search space for an attacker than a traditional character. Brute-force tools must test many more possible values ​​per position, making a relatively short password made with emojis just as difficult to guess as a much longer one based solely on letters and numbers.

To put this in context, some analyses indicate that a password composed of five different emojis can reach a complexity similar to a password of about nine "normal" characters . If we include seven emojis, the theoretical difficulty can be roughly equivalent to traditional 12-13 character passwords, provided they are combined randomly and are not obvious sequences.

Another interesting advantage is memory. For many people, it's easier to remember a short visual story than a string of meaningless letters and numbers. Emojis allow you to turn your password into a kind of phrase or graphic puzzle , like a mini-movie or a reference to a favorite song, film, or personal anecdote that only you will understand.

In addition, there are tools like "emoji translators" or even AI assistants capable of transforming a phrase into a sequence of icons . You can enter, for example, the title of a song or a phrase that means something to you, and get a sequence of emojis that you can then modify to create your password.

A third advantage is that, currently, many cybercriminals and their automated tools still don't include emojis in their attacks . Dictionaries and brute-force scripts typically focus on words, names, dates, numbers, and common substitutions (like swapping letters for symbols). Including emojis makes your password fall outside many of these predefined patterns, which can add an extra layer of difficulty for cracking it.

In summary, if used correctly, emojis can increase both the entropy of a password and its ease of memorization , combining, in theory, the best of both worlds: greater security and fewer headaches when remembering it.

Disadvantages and risks of including emojis in your passwords

The less appealing aspect of all this begins with cross-service compatibility . Although emojis are technically part of Unicode, in practice not all platforms accept these characters in their authentication mechanisms. Major services like Outlook (Microsoft) and Gmail ( Google ) have rejected passwords containing emojis in various tests conducted by experts.

This means you can't assume that every website, app, or program will allow you to use emojis in your password . In fact, in some cases you can create an account with an emoji-based password, but then, when you try to log in or go through some internal verification, the system rejects it or generates errors. In other words, compatibility isn't always consistent throughout the entire authentication process.

Another clear problem is the ease of entering emojis , especially on computers. On mobile devices, both Android and iOS include a very accessible emoji keyboard, so typing these icons into a password field is usually as easy as switching tabs on the keyboard and tapping the desired emoji.

On a PC or laptop, however, things get more complicated. In Windows 10 and 11 , for example, you have to open the emoji panel using shortcuts like Win + . or Win + ; , search for the specific icon within a rather long list, and make sure you choose the exact same one you used when creating the password. On macOS, the emoji table is found in the Edit → Emoji & Symbols menu or with the Command + Control + Spacebar shortcut . In Linux (like Ubuntu), you can also display an emoji table from the context menu or using shortcuts, but again, it's not as straightforward as pressing letters and numbers.

All of this means that if you use the same service on both your mobile and computer, you need to check that you can easily enter those emojis on all your devices . If one of them doesn't offer a convenient way to type them, or if the keyboard layout makes them difficult to find, you could end up being locked out of your own account.

An additional, less obvious but relevant drawback is that many smartphone keyboards display a list of "recent emojis" at the top . These are the faces and symbols you use most frequently. While this might not be very useful to a remote cybercriminal, someone close to you with physical access to your phone (family, friends, roommates) could get an idea of ​​which icons you use most often and use them as clues to try and guess your password.

Finally, there's the potential for confusion between similar variations of the same emoji . Some icons change their appearance slightly depending on the operating system or font used, and others have several versions (for example, different skin tones). If you used a specific variant when creating your password and then, without realizing it, choose another very similar but not identical one, the password will no longer match, and the system will reject it even though it may look like the same emoji at first glance.

How to create secure passwords with emojis

While it's possible to create a password using only icons, many experts recommend a middle ground: combining emojis with traditional letters, numbers, and symbols . This adds complexity without relying entirely on emoji compatibility, resulting in a more robust password against various types of attacks.

A good strategy is to start with an idea that resonates with you, such as a phrase, a memory, or a cultural reference , and translate part of that content into emojis, while still retaining some alphanumeric characters. For example, you could represent your favorite band with a couple of icons and add a year number that only you associate with something specific (other than your birthdate or easily deduced information).

So-called "emoji translators" and AI tools are useful as a starting point, but it's best not to use the suggested sequence of icons literally . It's advisable to take that suggestion and make manual changes: replace an emoji with one that only makes sense to you, insert numbers and symbols, or alter the order until the pattern is less obvious.

When creating your password, it's important to avoid dangerous shortcuts. It's not a good idea to use overly obvious emoji sequences (for example, icons in alphabetical order from a table or typical series like several identical faces). It's also unwise to literally reflect easily searchable personal information: profession, children's names, partner, or sports team, even if disguised as icons.

Another basic recommendation is to avoid reusing the same emoji password across multiple services . Just because your password is visual and easy to remember doesn't mean you should fall into the classic trap of repeating it everywhere. Ideally, reserve this type of combination for important services, and if you decide to use emojis on several sites, add small, specific variations for each one (such as an emoji associated with that service, a differentiating letter or number, etc.).

It's also worth carefully considering how many emojis you'll use. While the temptation might be to create a very short password using only icons, maintaining some length is still advisable . A reasonable number could be between 1 and 3 emojis combined with a robust set of alphanumeric characters; this adds entropy without overly complicating the password entry or relying entirely on all services to handle emoji-only passwords correctly.

Methods for inserting emojis on mobile and computer

If you decide to take the plunge and start using emojis in some of your passwords, it's essential to know how to enter them correctly on each device you'll be using. Otherwise, you might find that everything works perfectly on your phone, but you can't seem to type the correct password on your computer.

On mobile phones, both Android and iOS include a keyboard with a dedicated emoji section . Usually, simply tapping the smiley face icon or switching to the emoji tab in the bottom bar allows you to choose the ones you want. In most apps and forms, password fields accept these icons just like any other character.

On computers running Windows 10 or 11, the easiest way to type emojis in almost any text field is to press the Windows key along with the period (Win + .) , or in some cases, the Windows key with the semicolon (Win + ;). This opens a pop-up panel where you can search for the icon by category or by text. Once you find it, click on it, and it will be inserted at the cursor position.

On macOS, the emoji and symbol table is available in almost all applications via the top menu: Edit → Emoji & Symbols . You can also open it directly with the keyboard shortcut Command + Control + Spacebar . From there, simply locate the desired emoji and double-click to insert it into the password field.

In modern Linux distributions like Ubuntu, the options vary slightly depending on the desktop environment, but generally you can access an emoji menu by right-clicking on the text field and choosing "Insert emoji," or via a shortcut that in many cases is also Win + dot. Again, the important thing is to verify that you can repeat the same process without any issues on the login screen of each service you use.

It's also possible to write emojis using Unicode numeric codes . This system is more cumbersome, but very precise and useful if you work in environments where graphical panels aren't displayed. In Windows, for example, you can hold down the Alt key and enter the decimal code corresponding to each character on the numeric keypad. Other operating systems have similar documented mechanisms, although for average users it's often slow for everyday tasks.

For all these reasons, many experts recommend using a password manager that supports emojis . These tools store passwords in encrypted form and can automatically fill in login fields, regardless of how difficult it is to type the emojis by hand. However, you'll need to make sure that the specific password manager you use properly supports passwords with Unicode icons.

Good practices and mistakes to avoid when using emojis

Beyond the theoretical advantages, for a password with emojis to be truly secure, it's necessary to follow a series of classic cybersecurity guidelines , adapted to this new type of character. Simply adding two cute drawings and thinking that's it isn't enough.

The first thing is not to overuse the emojis you use most in your daily conversations . As mentioned before, mobile keyboards keep a history of recent icons, and anyone who takes a quick look could see the ones you use most often. While this alone isn't enough to crack your password, it can narrow down the search possibilities if someone who knows you decides to try that information.

It's also crucial to always check platform compatibility before permanently setting a password with emojis. Test your login from all your devices and make sure the service doesn't encounter any unusual errors when validating the password. If you notice any strange behavior, it's best to opt for a more traditional alphanumeric combination for that specific site.

Another basic recommendation is to continue combining emojis with letters, numbers, and symbols . Icons should be a complement, not a complete replacement. A strong password should include different types of characters and be of sufficient length, thus maintaining a high level of entropy even if, in the future, attack tools begin to include emojis in their dictionaries.

Don't forget the usual best practices: change your passwords regularly , avoid reusing them across critical platforms, and always enable two-factor authentication (2FA or MFA) whenever possible. If an attacker gets hold of your password, a second factor based on SMS, an authenticator app, or a physical key can be the last line of defense against accessing your account.

Finally, it's a good idea to have a reliable password manager handy . These apps make it easy to remember complex passwords—with or without emojis—and help generate strong, random passwords. Many also allow you to store two-factor authentication codes, centralizing your security management without having to memorize dozens of impossible combinations.

Taking all of the above into account, using emojis in passwords can be a very interesting idea if implemented thoughtfully: they offer more possible combinations, are easier to remember than a string of random characters, and are not currently as exploited in automated attacks . However, inconsistent compatibility between services, the inconvenience of typing them on certain devices, and the need to maintain classic security rules mean they shouldn't be considered a magic bullet, but rather a creative addition to a broader security strategy.