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Emails are an integral part of any business today. Whether for official or marketing purposes, emails play a big part in transferring information from one system to another. Unfortunately, cybercriminals also love emails, especially when it is directed from one business to another or their clients.
It is so because business emails carry crucial and sensitive information that can help them plan an attack. Thankfully, technological experts have also considered this threat and provided a way to minimize its risk through a secure email certificate. So in this blog, we will learn all about Secure Email SSL certificate and how it is used with a digital signature to ensure the right security for your emails. Let us start!
Before jumping ahead and learning about the secure email certificate, let us learn some basic concepts about digital signatures.
A digital signature, also referred to as a public key signature, is a cryptographic method of stamping a program, file, email, etc., to showcase the data of the file has not been modified after getting the signature.
A digital signature is considered trusted because you need a security certificate issued by an authentic Certification Authority to sign documents, files, and emails digitally. The CA verifies you and your business before issuing you the certificate and ensures that you won’t be using the security certificate for cyber criminal activities.
Once you receive the certificate (in case of email, an Email Security Certificate will be issued to you), you can use it to digitally sign emails. And as a trusted CA issued the certificate, your digital signature will be considered valid.
Comodo SMIME Certificate is considered as the most trusted and highly adopted certificate to secure email digitally and adding the digital signature.
The digital signature process in emails and otherwise is conducted using two cryptographic keys (public and private keys). The sender digitally signs a message or email on their system using a private key.
The file is further transferred and received in encrypted form on the receiver’s device. The receiver then utilizes the public key given by the sender, allowing them to access the email and its data.
The email security certificate allows users to send sensitive and crucial data over mail through a protected mechanism. Secure email certificate is mostly used by small to mid to large scale businesses.
The three major characteristics of a secure email certificate are:
The working of a secure email certificate and digital signature is similar.
A secure email certificate is highly important, especially if you send and receive several business emails carrying sensitive business data. Here are some of the reasons why an email security certificate is important:
Most data hacks occur when the data of the file is transferred from one system to another. In between the transfer, the hackers manage to steal some or all portions of data to harm the user’s system.
However, data hacking becomes ineffective when your emails are protected with a secure email certificate and digital signature. Hence, it is important for businesses to always use digital signatures while sending their emails.
People usually mistake personalized email signatures for digital signatures. A personalized email signature is a graphic added at the footer of your email depicting the organization of the sender. However, it has nothing to do with email security and can be tampered with in seconds.
On the other hand, a secure email certificate enables you to digitally sign emails using your server’s private keys. The encrypted email then further can only be accessed by the sender using their public key. This process helps your email receiver to authenticate the sender and ensure the safety of the message.
The entire email content, including any attachments, is hashed and encrypted using a digital signature certificate. An algorithm is used to convert the data into a fixed-size string of numbers and letters, which is known as hashing. Each generated hash value is unique, meaning if you resend the same message, a new hash value will be generated.
When the receiver gets the file, the server regenerates a new hash value that must match the hash value of the received email. If any alterations have been done to the data, the hash value won’t match, suggesting that the security of the file has been breached. If the value matches, you will get access to email ensuring complete data integrity.
Before sending your digitally signed emails, you must first purchase a secure email certificate from a verified CA (Certification Authority). Fox example, Comodo Enterprise SMIME Certificate. Once you have received the certificate, next is to add the certificate to the key-chain on your computer.
Another thing to consider before sending digitally signed mail is having a copy of each recipient’s certificate stored with the contacts in Outlook. In case the recipient you are listing is already available on an LDAP directory service used by Microsoft Exchange Server, the directory information will automatically be available to you. To further send the email with your digital signature, follow the given process:
Coming to one of the most crucial questions, does your business really require a S/MIME or email security certificate? We will answer that question with a firm Yes.
A digital email signature is vital in providing security to your emails and ensuring the safety of your email data. Some other reasons why your business needs a secure email certificate are given below:
Email encryption can protect crucial business information such as credit card details, bank account numbers, etc. The encryption prevents outsiders from intercepting sensitive data between the sender’s mail server and your email server. Protecting this information helps eliminate various business risks that can harm your organization.
A secure email certificate is an essential parameter that can enhance the security of your data and protect it from various cyber-attacks. Phishing is one of the most common attacks used for email data hacking. However, with the right email security, you get protected against all kinds of phishing attacks.
An organization’s reputation is always at risk. One mistake and the trust gained by thousands of users break down, leading to severe outcomes for the company.
Data leak is one such risk that must be thoughtfully dealt with by organizations using a digital signature in their emails. It will allow you to maintain a better customer-business relationship and ensure your user’s data security.
As online businesses grow and scale their operation, the need for adhering to the rules and regulations of various authorities becomes important. Different authorities suggest several rules for online businesses that they must follow to protect the personal information of their consumers.
And one of the essential guidelines for businesses that use sensitive user information like their credit cards, medical history, etc., is that they must have an authentic, secure email certificate. If not, the business can be fined and even shut down, making it mandatory for organizations to purchase an email security certificate.
A secure email certificate is crucial if you wish to uphold the privacy, establish integrity, secure sensitive data, and eliminate data security risks. With the right email certificate, you can ensure the safety of your customer and business data. To get more information on secure email certificates, get in touch with our expert team.