Best Practices for Encrypting your Phone Communications


Best Practices for Encrypting your Phone Communications- In the office, phone communication via voice conversations and text messages is crucial for maintaining productivity. A substantial number of firms have allowed employees to continue working remotely in the post-COVID-19 era. As a result, SMS messages, VoIP conversations, normal phone calls, video calls, group chats, instant messaging, and conference calls will all rely on mobile devices to share important information. As a result, knowing how to encrypt phone calls is critical.

Malicious cyber actors, on the other hand, frequently target mobile phones or Android devices that do not have end-to-end encryption security. According to Checkpoint’s Mobile Security Report 2021, cyberattacks on cell phones, mobile apps, mobile calls, mobile communications, and communications over a mobile network have occurred in practically every firm. The following data were presented in the report, which highlight the need of making secure communications by adopting procedures that enable encrypted calls:

At least 46% of businesses have employees who utilise mobile devices to download malicious software. Attackers use such programmes to listen in on unencrypted phone calls.

More than 40% of all internet-connected mobile devices, including Android and iOS smartphones, have vulnerabilities in their operating systems.

97 percent of enterprises throughout the world are vulnerable to a variety of threats that breach secure phones. Furthermore, in today’s digital age, users’ reliance on mobile devices and wireless networks creates a larger attack surface, potentially exposing them to many attacks.

Importance of Secure Voice Calls in the Workplace

Protecting data and user privacy requires secure connections. Because malevolent cyber actors cannot intercept or exfiltrate vital information provided via a mainly insecure internet connection, call encryption can bring peace of mind to an enterprise. Furthermore, the importance of encrypting phone calls goes beyond a proactive approach to cybersecurity, since many rules mandate enterprises to safeguard the total privacy of all stakeholders.

Encrypting cell phone calls also ensures private messaging, safe file transfers, and complete caller ID security, all of which are vital for complete user privacy. Furthermore, mobile phone encryption is required to satisfy mobile users’ privacy concerns, as most security experts agree that hackers frequently utilise intermediate attacks to obtain unencrypted personal data.

Typical Phone Communication Techniques

Voice over Internet Protocol (VoIP)

VoIP (Audio over Internet Protocol) is a popular call communication method that allows users to make voice and video calls. Because VoIP calls are made over the internet, VoIP providers like Zoom and Skype have become indispensable in the post-pandemic period. However, in order to maintain secure communication, adequate network security and call encryption techniques are required. Unencrypted VoIP messages can be intercepted by attackers, especially if they are sent via unprotected wireless networks.

Furthermore, because VoIP connects CRM systems and analytics platforms, unencrypted VoIP poses a greater risk to a company’s security. To prevent illegal use, businesses should only employ VoIP providers who use end-to-end encryption, secure wireless networks with TLS security and activated Secure Real-time Transport Protocol (SRTP), and two-factor authentication.

How to encrypt phone calls (Landlines)

Due to increased mobility and access to internet services, landlines are mainly underutilised today. Landlines, on the other hand, are frequently secure because a single line joins callers on both ends of the connection. Although wiretapping assaults constitute a potential concern, they are usually difficult to carry out without the assistance of law enforcement. Nonetheless, security concerns to landlines are a reality, and businesses should take adequate precautions. Only using secure phones that employ voice call security features is a typical way to improve the security of landline calls. Furthermore, callers on both ends of the line must utilise encrypted phones to keep confidential information safe from prying eyes.

How to encrypt phone calls (Cell Phones)

In every aspect of life, cell phones have taken over communication. Reasonable security measures, convenience, and low costs have all contributed to the rising use of cell phones for communication. Cell phones, on the other hand, communicate via network signals, which can be intercepted by those with the necessary skills. Fortunately, a variety of encryption techniques make it possible to send sensitive information without fear of it falling into the wrong hands. However, the total security of cell phone conversations is largely dependent on encryption mechanisms that have been deployed. The following section goes through the various methods that cell phone users can employ to encrypt various forms of phone calls.

Encryption Best Practices for Phone Communications

How to Protect Phone Calls Using Encryption (Voice and Video Calls)

The Signal app, which is available for both desktop and mobile devices, is a popular way to protect user privacy. The open-source application has been evaluated by a number of security researchers, with academic cryptographers and well-known security analysts such as Edward Snowden praising it for its encryption capabilities. As a result, users of Signal can use it to establish encrypted audio and video calls. WhatsApp, the most popular messaging app, employs Signal’s encryption algorithms for video and phone calls, making it ideal for secure communication. Organizations can also use the Wire encryption software to perform encrypted group calls, which is an important feature for safeguarding the details of a highly sensitive conference call.

Email Communications Encryption

Due to its simplicity and reliance over time, email communication is a widely utilised tool for sharing sensitive material. Attackers, on the other hand, have created a number of methods for intercepting email communications. Fortunately, several email services provide built-in encryption techniques to protect private conversations. Enigmail, for example, may be integrated with Mozilla’s Thunderbird email client to send encrypted emails. Users can also use Mailvelope as a browser plugin to encrypt Gmail messages. Furthermore, Protonmail email provides an end-to-end encrypted email service, but all users must first create Protonmail email accounts in order to transmit email messages securely.

Encrypting Data in Cell Phones While It Is In Transit

The majority of mobile device users in the globe are Android and iPhone users. As a result, they retain gigabytes of sensitive data, which can attract harmful persons like hackers and enraged friends or family members. Encrypting data at rest is a key safeguard against unauthorised access to personal data. Fortunately, encrypting your smartphone’s storage is a simple process. Full-disk encryption is available on smartphones, and a strong passcode can offer the necessary security. Biometrics, such as fingerprints, can allow users to encrypt and secure data.

Message Encryption for Tests

End-to-end encryption mechanisms are available on modern messaging systems to prevent fraudsters from intercepting conversations. WhatsApp and Signal are two of the most popular messaging apps, both of which are known for their message encryption. Secret Conversations on Facebook also encrypts data sent via Facebook’s Instant Messaging app. Other messaging platforms, on the other hand, allow users to sign up without providing a phone number. The apps are recommended for smartphone users who want some control over their devices. However, obtaining communication programmes from third parties rather than official vendors may expose you to security dangers such as insufficient encryption and data exfiltration backdoors.

Jennifer Thomas
Jennifer Thomas is the Co-founder and Chief Business Development Officer at Cybers Guards. Prior to that, She was responsible for leading its Cyber Security Practice and Cyber Security Operations Center, which provided managed security services.