Cybersecurity has become more important than ever, especially with the rise in cyberattacks. However, much focus is put on computers, laptops, servers, etc. Mobile phones and tablets seem to be overlooked when talking about cybersecurity.

Today smartphones are integrated into the modern workforce as driven by work at home and remote working. To enhance mobility, these devices are installed with business mobile applications that enable access to company systems. They enable users to conduct different activities on-the-go, such as banking, connecting to company networks, business transactions, and other social operations. However, this is raising concerns about the security of sensitive corporate data and other personal information stored on phones.

Despite these concerns, businesses continue to be lax on enforcing solid measures to protect company data and networks.

Since the phones have less protection than computers, they have become an easy target for cybercriminals who are using different methods to gain access to phones.

Security Threats to Mobile Devices

Phishing is one common attack vector that uses fake emails and text messages to trick users into clicking links that download malware onto a user’s smartphone. For instance, cybercriminals may use SMS to mimic legitimate companies and send messages that contain harmful links.

Recently, cybersecurity researchers cited a WhatsApp phishing campaign that attempts to lead WhatsApp users to install an information-stealing malware. The senders impersonate the WhatsApp notification service and send an email to a user claiming they have received a private voicemail. A user who is unaware of this ploy and clicks on the play button in the email will download malware onto their phone.

Attackers also take advantage of data leakage through malicious mobile apps. Users can get these apps by downloading fake versions of real apps, which are infected with malicious code that steals personal data stored on a phone.

Data can be stolen through legitimate solutions, as researchers found at the end of October 2021, when they discovered a banking trojan horse known as SharkBot in six phoneapps. These apps were designed as legitimate antivirus solutions. The malware could bypass multifactor authentication to steal credentials and banking information, and even transfer money. Although the six dangerous apps have since been deleted from the Google Play store, this goes to show that hackers do not tire of looking for ways to infiltrate mobile devices.

Mobile phones also are affected by web-based mobile security threats when users access affected sites that download malicious content onto a device.

Other security threats to phones include using unsecured public WiFi, lost or stolen mobile devices, mobile spyware, rooting malware and jailbroken phones that become more prone to attacks.

How to Keep Safe

Since phones are now primarily being used as business tools, business owners need to rethink their mobile strategies for both employer-provided devices and bring your own device (BYOD).

Businesses that deploy mobile device management (MDM) tools will block potentially harmful apps, automatically update software, and remotely wipe off data on stolen or lost phones.

Users are the weakest link in security issues; hence, a need for regular security risk-training on social engineering by learning how to differentiate suspicious emails and SMS messages. Users also need to learn to avoid downloading applications from third parties and other untrusted sources and use only authorized app stores. Furthermore, user training should include the dangers of public Wi-Fi, the importance of turning off a phone’s Wi-Fi when not using it, and locking the device with a strong password or biometrics, such as fingerprint detection.

Users also should avoid granting broad app permissions, especially for free apps that may be sending sensitive data to remote servers, where it can be used not only by advertisers but also by cybercriminals.

Keeping device operating systems and other software updated will reduce attack possibilities since cybercriminals use old bugs to hack devices.

It is important to install anti-malware and anti-virus programs on mobile devices since they now face the same threats as computers and laptops.

Businesses can introduce a mobile device policy that employees sign before accessing company resources on their devices or when receiving employer-provided devices. Such a policy includes the dos and don’ts of using phones.

Regular security testing is crucial for enterprise applications as it helps expose vulnerabilities in apps and especially those developed by third-party agencies to ensure the security meets required compliance guidelines.

Conclusion

Mobile phones now have capabilities similar to computers and store a lot of personal and sensitive data. As more devices access business systems, it creates more endpoints that put the business at risk of a data breach. Therefore, businesses of all sizes should take mobile security seriously through strong defensive measures, which can be enhanced with enterprise mobile security solutions.

Cybersecurity experts estimate that there is a ransomware attack every 11 seconds. This makes it a challenge to individuals, businesses and even governments.

In ransomware attacks, cybercriminals encrypt a victim’s network or data, making it inaccessible until a ransom is paid. Despite organizations’ efforts to reduce the attacks, cybercriminals also are advancing their attack methods. For instance, an organization may have backups they can use to restore their systems, but the criminals also demand ransom not to publish the sensitive company information they have in their possession.

Ransomware is not a new cybersecurity threat. It is traced back to 1989 when the first ransomware was released through floppy disks and required a victim to send money to a post office box in Panama. As technology now has advanced to allow for always-on connectivity, the prevalence of ransomwares has grown tremendously. The use of bitcoin and other cryptocurrencies as payment make it more complicated as they are difficult to trace. These attacks such as the WannaCry, CryptoLocker, etc. have resulted in billions in losses through infrastructure and business outages and millions of dollars being paid to the attackers.

Ransomware has grown so much that organized gangs are offering cybercriminals services for hire. This is made more intricate by the availability of ransomware-as-a-service (RaaS) to provide infrastructure to other cybercriminals to escalate their attacks.

Ransomware has become such a global threat that in a joint advisory made up of CISA, FBI, NSA and International Partners, has called for every government, business and individual to be aware of this threat and take necessary action to avoid becoming victims.

President Joe Biden also continuously issues warnings to business leaders to strengthen their companies’ cyber defenses. The risks of cybersecurity are expected to increase with the ongoing invasion of Ukraine by Russia.

On the other hand, there are efforts to reduce the threat scale by various groups. One such group is the Cyber Threat Intelligence League (CTI-League), made up of cybersecurity experts from different countries. They have helped take down malicious websites, detect vulnerabilities, collect and analyze different phishing messages, and assist law enforcement organizations in creating safer cyberspace.

Protecting Against Ransomware

Before a ransomware attack is fulfilled, there are detectable activities that can aid in mitigating an attack. In any case, the attackers target specific user behavior, unchanged default security configurations and common technology vulnerability. This means that ransomware attacks can be avoided. Some ways to keep safe from ransomware include:

1. Timely patches – ensure to patch operating systems and other software immediately whenever a patch is released. Patching also should apply to cloud environments, including virtual machines, serverless applications and third-party libraries.
2. Keep backups – it is impossible to fully protect an organization network as one user action may expose the network to attacks. Regularly backing up data is crucial. However, ensure that cloud backups are encrypted and can’t be deleted or altered. Also, always keep a backup version that is not accessible through the cloud to ensure business continuity in case of an attack.
3. User training – users are considered the weakest link in the line of defense against cybersecurity. An attack can start with a seemingly legit email containing a link or an attachment that downloads malware to a device once clicked. Therefore, continuous user training and phishing exercises will help reinforce user responses to suspicious emails.
4. Secure and monitor RDP – as more people adopt remote working, they rely on the remote desktop protocol to connect to office computers or colleagues. This has made RDP one of the most commonly used methods for attackers to gain access to a network. Therefore, businesses should use Network Level Authentication (NLA) and use unique and complex passwords for users to authenticate themselves before making a remote connection. Other ways include multifactor authentication, setting time limits to disconnect inactive RDP sessions automatically, and limiting login attempts.
5. Use up-to-date antivirus software – this should be used to regularly scan the systems and scan files downloaded from the internet before they are opened.
6. Network monitoring – use network monitoring tools and intrusion detection systems to look out for any suspicious activity.

The CISA, FBI, NSA and International Partners joint advisory discourages paying ransom to cybercriminals and recommends following the CISA ransom response checklist, and reporting to cybersecurity authorities such as the FBI, CISA or the U.S. Secret Service. System administrators should also follow incident response best practices that can aid in handling malicious activity.