It’s clear to the news media and to every aware assurance professional that today’s cybercriminals are more sophisticated than ever in their operations and attacks. They’re always on the lookout for innovative ways to exploit vulnerabilities in every global payment system and in the cloud.
According to the ACFE, more consumer records were compromised in 2015-16 than in the previous four years combined. Data breach statistics from this year (2017) are projected to be even grimmer due to the growth of increasingly sophisticated attack methods such as increasingly complex malware infections and system vulnerability exploits, which grew tenfold in 2016. With attacks coming in many different forms and from many different channels, consumers, businesses and financial institutions (often against their will) are being forced to gain a better understanding of how criminals operate, especially in ubiquitous channels like social networks. They then have a better chance of mitigating the risks and recognizing attacks before they do severe damage.
As your Chapter has pointed out over the years in this blog, understanding the mechanics of data theft and the conversion process of stolen data into cash can help organizations of all types better anticipate in the exact ways criminals may exploit the system, so that organizations can put appropriate preventive measures in place. Classic examples of such criminal activity include masquerading as a trustworthy entity such as a bank or credit card company. These phishers send e-mails and instant messages that prompt users to reply with sensitive information such as usernames, passwords and credit card details, or to enter the information at a rogue web site. Other similar techniques include using text messaging (SMSishing or smishing) or voice mail (vishing) or today’s flood of offshore spam calls to lure victims into giving up sensitive information. Whaling is phishing targeted at high-worth accounts or individuals, often identified through social networking sites such as LinkedIn or Facebook. While it’s impossible to anticipate or prevent every attack, one way to stay a step ahead of these criminals is to have a thorough understanding of how such fraudsters operate their enterprises.
Although most cyber breaches reported recently in the news have struck large companies such as Equifax and Yahoo, the ACFE tells us that small and mid-sized businesses suffer a far greater number of devastating cyber incidents. These breaches involve organizations of every industry type; all that’s required for vulnerability is that they operate network servers attached to the internet. Although the number of breached records a small to medium sized business controls is in the hundreds or thousands, rather than in the millions, the cost of these breaches can be higher for the small business because it may not be able to effectively address such incidents on its own. Many small businesses have limited or no resources committed to cybersecurity, and many don’t employ any assurance professionals apart from the small accounting firms performing their annual financial audit. For these organizations, the key questions are “Where should we focus when it comes to cybersecurity?” and “What are the minimum controls we must have to protect the sensitive information in our custody?” Fraud Examiners and forensic accountants with client attorneys assisting small businesses can assist in answering these questions by checking that their client attorney’s organizations implement a few vital cybersecurity controls.
First, regardless of their industry, small businesses must ensure their network perimeter is protected. The first step is identifying the vulnerabilities by performing an external network scan at least quarterly. A small business can either hire an outside company to perform these scans, or, if they have small in-house or contracted IT, they can license off-the-shelf software to run the scans, themselves. Moreover, small businesses need a process in place to remedy the identified critical, high, and medium vulnerabilities within three months of the scan run date, while low vulnerabilities are less of a priority. The fewer vulnerabilities the perimeter network has,
the less chance that an external hacker will breach the organization’s network.
Educating employees about their cybersecurity responsibilities is not a simple check-sheet matter. Smaller businesses not only need help in implementing an effective information security policy, they also need to ensure employees are aware of the policy and of their responsibilities. The policy and training should cover:
–Awareness of phishing attacks;
–Training on ransomware management;
–Potential threats of social engineering;
–Risks of storing sensitive data in the cloud;
–Accessing corporate information from home computers and other personal devices;
–Awareness of tools the organization provides for securely sending emails or sharing large files;
–Protection of mobile devices;
–Awareness of CEO spoofing attacks.
In addition, small businesses should verify employees’ level of awareness by conducting simulation exercises. These can be in the form of a phishing exercise in which organizations themselves send fake emails to their employees to see if they will click on a web link, or a social engineering exercise in which a hired individual tries to enter the organization’s physical location and steal sensitive information such as information on computer screens left in plain sight.
In small organizations, sensitive information tends to proliferate across various platforms and folders. For example, employees’ personal information typically resides in human resources software or with a cloud service provider, but through various downloads and reports, the information can proliferate to shared drives and folders, laptops, emails, and even cloud folders like Dropbox or Google Drive. Assigned management at the organization should check that the organization has identified the sites of such proliferation to make sure it has a good handle on the state of all the organization’s sensitive information:
–Inventory all sensitive business processes and the related IT systems. Depending on the organization’s industry, this information could include customer information, pricing data, customers’ credit card information, patients’ health information, engineering data, or financial data;
–For each business process, identify an information owner who has complete authority to approve user access to that information;
–Ensure that the information owner periodically reviews access to all the information he or she owns and updates the access list.
Organizations should make it hard to get to their sensitive data by building layers or network segments. Although the network perimeter is an organization’s first line of defense, the probability of the network being penetrated is today at an all-time high. Management should check whether the organization has built a layered defense to protect its sensitive information. Once the organization has identified its sensitive information, management should work with the IT function to segment those servers that run its sensitive applications. This segmentation will result in an additional layer of protection for these servers, typically by adding another firewall for the segment. Faced with having to penetrate another layer of defense, an intruder may decide to go elsewhere where less sensitive information is stored.
An organization’s electronic business front door also can be the entrance for fraudsters and criminals. Most of today’s malware enters through the network but proliferates through the endpoints such as laptops and desktops. At a minimum, internal small business management must ensure that all the endpoints are running anti-malware/anti-virus software. Also, they should check that this software’s firewall features are enabled. Moreover, all laptop hard drives should be encrypted.
In addition to making sure their client organizations have implemented these core controls, assurance professionals should advise small business client executives to consider other protective controls:
–Monitor the network. Network monitoring products and services can provide real-time alerts in case there is an intrusion;
–Manage service providers. Organizations should inventory all key service providers and review all contracts for appropriate security, privacy, and data breach notification language;
–Protect smart devices. Increasingly, company information is stored on mobile devices. Several off-the-shelf solutions can manage and protect the information on these devices. Small businesses should ensure they are able to wipe the sensitive information from these devices if they are lost or stolen;
–Monitor activity related to sensitive information. Management IT should log activities against their sensitive information and keep an audit log in case an incident occurs and they need to review the logs to evaluate the incident.
Combined with the controls listed above, these additional controls can help any small business reduce the probability of a data breach. But a security program is only as strong as its weakest link Through their assurance and advisory work, CFE’s and forensic accountants can proactively help identify these weaknesses and suggest ways to strengthen their smaller client organization’s anti-fraud defenses.