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Data Encryption from Ransomware Reaches Highest Level in Four Years, Sophos’ Annual State of Ransomware Report Finds

Report by SANDRA ANI

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Sophos’ Annual State of Ransomware
  • Paying the Ransom Doubles Recovery Costs
  • Rate of Ransomware Attacks Remains Steady, with 66% of Organizations Surveyed Reporting They Were a Victim of Ransomware

Sophos, a global leader in innovating and delivering cybersecurity as a service, today released its annual “State of Ransomware 2023 ” report, which found that in 76% of ransomware attacks against surveyed organizations, adversaries succeeded in encrypting data. This is the highest rate of data encryption from ransomware since Sophos started issuing the report in 2020.

The survey also shows that when organizations paid a ransom to get their data decrypted, they ended up additionally doubling their recovery costs ($750,000 in recovery costs versus $375,000 for organizations that used backups to get data back). Moreover, paying the ransom usually meant longer recovery times, with 45% of those organizations that used backups recovering within a week, compared to 39% of those that paid the ransom.

Overall, 66% of the organizations surveyed were attacked by ransomware—the same percentage as the previous year. This suggests that the rate of ransomware attacks has remained steady, despite any perceived reduction in attacks.

“Rates of encryption have returned to very high levels after a temporary dip during the pandemic, which is certainly concerning. Ransomware crews have been refining their methodologies of attack and accelerating their attacks to reduce the time for defenders to disrupt their schemes,” said Chester Wisniewski, field CTO, Sophos.

“Incident costs rise significantly when ransoms are paid. Most victims will not be able to recover all their files by simply buying the encryption keys; they must rebuild and recover from backups as well. Paying ransoms not only enriches criminals, but it also slows incident response and adds cost to an already devastatingly expensive situation,” said Wisniewski.

Source: Sophos’ Annual State of Ransomware Report
Source: Sophos’ Annual State of Ransomware Report

When analyzing the root cause of ransomware attacks, the most common was an exploited vulnerability (involved in 36% of cases), followed by compromised credentials (involved in 29% of cases). This is in line with recent, in-the-field incident response findings from Sophos’ 2023 Active Adversary Report for Business Leaders.

Additional key findings from the report include:

  • In 30% of cases where data was encrypted, data was also stolen, suggesting this “double dip” method (data encryption and data exfiltration) is becoming commonplace
  • The education sector reported the highest level of ransomware attacks, with 79% of higher education organizations surveyed and 80% of lower education organizations surveyed reporting that they were victims of ransomware
  • Overall, 46% of organizations surveyed that had their data encrypted paid the ransom. However, larger organizations were far more likely to pay. In fact, more than half of businesses with revenue of $500 million or more paid the ransom, with the highest rate reported by those with revenue over $5 billion. This could partially be due to the fact that larger companies are more likely to have a standalone cyber insurance policy that covers ransom payments

“With two thirds of organizations reporting that they have been victimized by ransomware criminals for the second year in a row, we’ve likely reached a plateau. The key to lowering this number is to work to aggressively lower both time to detect and time to respond. Human-led threat hunting is very effective at stopping these criminals in their tracks, but alerts must be investigated, and criminals evicted from systems in hours and days, not weeks and months. Experienced analysts can recognize the patterns of an active intrusion in minutes and spring into action. This is likely the difference between the third who stay safe and the two thirds who do not. Organizations must be on alert 24×7 to mount an effective defense these days,” said Wisniewski.

Sophos’ Annual State of Ransomware Report
Source: Sophos’ Annual State of Ransomware Report

Sophos recommends the following best practices to help defend against ransomware and other cyberattacks:

  • Strengthen defensive shields with:
    • Security tools that defend against the most common attack vectors, including endpoint protection with strong anti-exploit capabilities to prevent exploitation of vulnerabilities, and Zero Trust Network Access (ZTNA) to thwart the abuse of compromised credentials
    • Adaptive technologies that respond automatically to attacks, disrupting adversaries and buying defenders time to respond
  • Optimize attack preparation, including making regular backups, practicing recovering data from backups and maintaining an up-to-date incident response plan
  • Maintain good security hygiene, including timely patching and regularly reviewing security tool configurations

Data for the State of Ransomware 2023 report comes from a vendor-agnostic survey of 3,000 cybersecurity/IT leaders conducted between January and March 2023. Respondents were based in 14 countries across the Americas, EMEA and Asia Pacific. Organizations surveyed had between 100 and 5,000 employees, and revenue ranged from less than $10 million to more than $5 billion.

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SIM Boxing, And The Unboxing of a Crime Syndicate

Writer: Suleiman Bala Bakori

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SIM card

Boxes have a multitude of uses, and the word “box”, lends itself to diverse contexts. For “Ajala Travelers,” the box is a necessity for keeping goods for their endless journeys. In literature, idiomatically, it can be said that “one has been boxed into a corner;” another might say to deal with a conundrum: “think outside the box;” then there is the “Pandora’s box” that no one wants opened.

To “box one’s ear’s” refers to a hit on the head, especially around one’s ears. For those who celebrate Christmas, “Boxing Day,” which is the 26th of December, the second day of Christmastide is not to be joked with: A day to unbox gifts. So much for the box.

Another type of boxes exists in the telecommunications world: The SIM Box. Have you ever received an international call but saw a local phone number ring in? That is SIM Boxing in action. Let me explain.

SIM boxing happens when a person uses a special equipment, what is called a SIM Box containing tens to hundreds of SIM Cards—from 32, to 96, to 512 and more SIMs —to terminate international calls by bringing in the international call into the SIM Box using internet connections and regenerating the calls to the called party from one of the hundred SIMs in the box.

This way, the called party will see the local number of the SIM from the SIM Box, and not the original international number calling.

With SIM Boxes, the syndicate charges international call carriers lower rates than what regular Nigerian telecommunications operators would charge, as they do not have to pay the full cost of maintaining and operating a phone network.

Basically, they are bypassing the normal route for international phone call termination to terminate international calls cheaply and making windfall profits off it.

Take for instance, a telecommunications operator in Nigeria would ordinarily charge international carriers 10cents per minute for terminating an international call in Nigeria. However, by routing the call through a SIM Boxing syndicate, the international telecommunications carrier only pays a fraction of the charge to the syndicate, say 5cents per minute and does not have to pay the full 10cents per minute charge.

The SIM Boxer will terminate this call to the called subscriber at a rate of, say N15 per minute using one of the SIM cards in their SIM Box. The SIM Boxer thus makes a killing from the differential between the rate charged to the international carrier and the rate paid to telecommunications operators whose SIM they utilise in their SIM Boxes, at the expense of our national security and income of mobile network operators and quality of our service to consumers.

Asides the revenue loss that local mobile network operators suffer courtesy the activities of these syndicates, networks face congestion around areas where the illegal call routings via SIM Boxing occurs. With the huge traffic from the boxes, callers around the area see more dropped calls, poor call quality, and slower data speeds.

The introduction of the linking of National Identity Numbers (NIN) to SIMs is one way the Federal Government has worked to tackle this criminal enterprise. With every SIM in the country being linked to an NIN, an identity is tied to the owner of each line, and regulators now have visibility of ownership. That is not all. There is also the “Max-4 Rule” where a subscriber is not allowed to have more than four lines per network operator linked to his NIN. With this rule in place, coupled with the NIN-SIM Linkage, every telephone subscriber in Nigeria would not just be accurately identifiable but limited to having only four telephone lines per subscriber.

To enforce this rule, the Nigerian Communications Commission (NCC) on the 29th of March 2024 announced the deadline for Mobile Network Operators to bar all subscribers who had five lines and above, and whose NIN failed the verification test of biometrics matching.

Over the last few weeks, sources within the NCC have confirmed cases where a single NIN was linked to over 100,000 lines.

Some NINs had well over 10,000 SIMS linked to them, others over a thousand, others had hundreds. Many have questioned the reports and asked, what would any single reasonable person be doing with these number of lines? Justifiable questions, because no sane person—who is not running a business—should own more than five SIM cards.

Given the ‘Max 4 Rule’ in place and the NIN-SIM Linkage Policy, SIM Boxers have been boxed into a corner.

The applications they use require tens to thousands of SIM Cards, and the imperative to stay anonymous. If these policies are well and fully implemented, this is the death knell for SIM Boxing merchants.

But the regulator, NCC needs to be fast and ready for the battle ahead. SIM Boxing is a billion-dollar criminal enterprise. They are not going to go down without a fight. It is like taking a bone being chewed from the mouth of a bulldog.

Already, the battle seems to have kicked off. A lawyer, Barrister Olukoya Ogunbeje has recently taken the Federal Government, NCC and Mobile Network Operators to court, claiming that the barring of SIMs not linked to NINs goes against his fundamental human rights, and has cost him the loss of business opportunities.

Anyone who has Nigeria’s interest at heart ordinarily supports this policy. It then does not add up seeing a so-called activist lawyer take up such a matter that is clearly against the public interest—unless this is the Haka cry of SIM Boxers.

A most interesting observation with his case is that it is not even a class action, but individually driven. It begs the question then, who is funding Barr. Olukoya Ogungbeje? What is his interest in fighting this policy that puts paid to the business of a criminal enterprise? Is he funded by interests in the SIM Boxing world? Time would tell. But in the meantime, NCC must go head on without fear or intimation and clean the Augean stable of SIM ownership in Nigeria.

Suleiman Bala Bakori is a researcher, and writes from the FCT.

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inq.Digital Supports Payments Forum Nigeria [PAFON 1.0]

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PAFOn 1.0
PAFON SPEAKERS

Inq. Digital Nigeria Limited has been announced as a sponsor of Payments Forum Nigeria [PAFON 1.0] maiden edition holding this Thursday in Lagos.

inq. Digital Nigeria Limited, a subsidiary of inq. Group is an emerging leading digital and cloud solutions provider that delivers simpler seamless solutions to complex business challenges.

With offices in Lagos, Abuja, Port Harcourt and Kano, inq. provides reliable and affordable Intelligent Connectivity, SDN/NFV, Cloud and Digital services (including Edge –AI) for Nigerian businesses including those in the payment space.

Participation is FREE, however, pre-registration is required: https://bit.ly/4c4N19H.

Speaking ahead of Payments Forum Nigeria [PAFON 1,0] scheduled to take place at Oriental Hotel, Lekki Road, Lagos on Thursday, March 21, 2024 by 9am under the theme: “Payments: Trust, Security and Privacy in AI Era”, Mr. Chike Onwuegbuchi, the co-founder of TechCastle Foundation, the organisers, said the goal is to enable information exchange and knowledge sharing on key industry insights issues amongst key stakeholders, with the objective of ensuring a collaborative and proactive approach to push for policies that enable growth, tackling/mitigating fraud and limiting occurrences and losses.

Speakers

The following speakers are lined up for the Forum: Chibuzo Efobi, Director, Payments System Management, Central Bank of Nigeria (CBN); Festus Amede, Chairman, Committee of Chief Information Security Officers of Nigerian Financial institutions (CCISONFI; Dr. Adewale Peter Obadare, Chief Visionary Officer (CVO), Digital Encode Limited; Adetokunbo Omotosho, Chief Executive Officer, Cybervergent; Roosevelt Elias, Founder, Payble; Ikenna Ndugbu, chief compliance officer, Moniepoint MFB, and Peter Evbota, Sales Director at inq. Digital Nigeria Limited.

Payments Forum Nigeria is organised by TechCastle Foundation and sponsored by: inq. Digital Nigeria Limited, Cybervergent, Moniepoint, Digital Encode Limited, Payble with support from the Central Bank of Nigeria (CBN).

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Meet Kingsley Adonu

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In the dynamic world of entrepreneurship, there are visionaries who not only navigate the business landscape but redefine it. Meet Kingsley Adonu, the Founder and Chief Executive Officer of the SMobile Group, a conglomerate that stands as a beacon of excellence and diversity in the global business arena.

Kingsley Adonu is a visionary entrepreneur and the Founder of the SMobile Group, a conglomerate synonymous with excellence and diversity. As the Chief Executive Officer, he has steered the group to remarkable heights, overseeing a spectrum of businesses that span across Telecommunications, Oil and Gas, Real Estate, Hospitality, Water Production, Agriculture, Technology, E-commerce, Energy, Sports, Entertainment, Education, Health, Logistics and Financial Services, with branches extending globally to UK, USA, China, South Africa, and Canada.

Under Kingsley’s astute leadership, SMobile Group has emerged as a major partner for MTN, evident in the impactful presence of the SMobile brand in the telecommunications landscape. His strategic insights and forward-thinking approach have positioned the group as a dynamic player in multiple industries.

Beyond the boardroom, Kingsley Adonu is a dedicated philanthropist, committed to making a positive impact in communities. His philanthropic efforts extend beyond business, reflecting a deep-seated belief in the responsibility of successful individuals to contribute meaningfully to society.

Kingsley’s influence is not confined to national borders; he has actively participated in numerous international telecom conferences, further enriching his understanding of global industry trends and fostering valuable connections with industry leaders worldwide.

With an unwavering commitment to excellence, Kingsley Adonu continues to inspire and lead the SMobile Group towards new horizons, blending business acumen with a passion for positive societal change.

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