[BreachExchange] Third-Party Aspects of Cybersecurity Protections: Beyond your reach but within your control
Audrey McNeil
audrey at riskbasedsecurity.com
Thu Jul 27 19:24:25 EDT 2017
https://www.natlawreview.com/article/third-party-aspects-
cybersecurity-protections-beyond-your-reach-within-your-control
Data privacy and cybersecurity issues are ongoing concerns for companies in
today’s world. It is nothing new to hear. By now, every company is aware
of the existence of cybersecurity threats and the need to try to protect
itself. There are almost daily reports of data breaches and/or ransomware
attacks. Companies spend substantial resources to try to ensure the
security of their confidential information, as well as the personal and
confidential information of their customers, employees and business
partners. As part of those efforts, companies are faced with managing and
understanding their various legal and regulatory obligations governing the
protection, disclosure and/or sharing of data – depending on their specific
industry and the type of data they handle – as well as meeting the
expectations of their customers to avoid reputational harm.
Despite the many steps involved in developing wide-ranging cybersecurity
protocols – such as establishing a security incident response plan,
designating someone to be responsible for cybersecurity and data privacy,
training and retraining employees, and requiring passwords to be changed
regularly – it is not enough merely to manage risks internal to the
company. Companies are subject to third-party factors not within their
immediate control, in particular vendors and employee BYOD (Bring Your Own
Device). If those cybersecurity challenges are not afforded sufficient
oversight, they will expose a company to significant risks that will undo
all of the company’s hard work trying to secure and defend its data from
unauthorized disclosures or cyberattacks. Although companies may afford
some consideration to vendor management and BYOD policies, absent rigorous
follow up, a company may too easily leave a gaping hole in its
cybersecurity protections.
VENDORS
To accomplish business functions and objectives and to improve services,
companies regularly rely on third-party service providers and vendors. To
that end, vendors may get access to and get control over confidential or
personal information to perform the contracted services. That information
may belong to the company, employees of the company, the clients of the
company and/or business partners of the company.
When information is placed into the hands of a vendor and/or onto its
computer systems, stored in its facilities, or handled by its employees or
business partners, the information is subject to unknown risks based on
what could happen to the information while with the third-party. The
possibility of a security breach or the unauthorized use or access to the
information still exists but a company cannot be sure what the vendor will
do to protect against or address those dangers if they arise. A company
cannot rely on its vendors to maintain necessary security protocols and
instead must be vigilant by exercising reasonable due diligence over its
vendors and instituting appropriate protections. To achieve this task, a
company needs to consider the type of information involved, the level of
protection required, the risks at issue and how those risks can be managed
and mitigated.
Due Diligence
A company must perform due diligence over the vendor and the services to be
provided and should consider, among other things, supplying a questionnaire
to the vendor to answer a host of cybersecurity related questions including:
> What services will the vendor provide? Gain an understanding of the
services being provided by the vendor, including whether the vendor only
gains access to, or actually takes possession of, any information. There
is an important difference between a vendor (i) having access to a
company’s network to implement a third-party solution or provide a
thirdparty service and (ii) taking possession of and/or storing information
on its network or even the network of its own third-party vendors.
> Who will have access to the information? A company should know who at
the vendor will have access to the information. Which employees? Will the
vendor need assistance from other third-parties to provide the
contracted-for services? Does the vendor perform background checks of its
employees? Do protocols exist to prevent employees who are not authorized
from having access to the information?
> What security controls does the vendor have in place? A company should
review the vendor’s controls and procedures to make sure they comply not
only with applicable legal and regulatory requirements but also with the
company’s own standards. Does the vendor have the financial wherewithal to
manage cybersecurity risks? Does the vendor have cybersecurity insurance?
Does the vendor have a security incident response plan? To what extent has
the vendor trained with or used the plan? Has the vendor suffered a
cyberattack? If so, it actually may be a good thing depending on how the
vendor responded to the attack and what, if anything, it did to improve its
security following the attack. What training is in place for the vendor’s
employees? How is the vendor monitoring itself to ensure compliance with
its own procedures?
The Contract
A company should seek to include strong contractual language to obligate
the vendor to exercise its own cybersecurity management and to cooperate
with the company to ensure protection of the company’s data. There are
multiple provisions to consider when engaging vendors and drafting or
updating contracts to afford the company appropriate protections. A
one-size-fits-all approach for vendors will not work and clauses will need
to be modified to take account of, among other things:
> The sensitivity of the information at issue – Does the information
include only strictly confidential information, such as trade secrets or
news of a potential merger? Does the information include personal
information, such as names, signatures, addresses, email addresses, or
telephone numbers? Does the information include what is considered more
highly sensitive personal information, such as SSNs, financial account
information, credit card information, tax information, or medical data?
> The standard of care and obligations for the treatment of information – A
company should want its vendors to meet the same standards the company
demands of itself. Vendors should be required to acknowledge that they
will have access to or will take possession of information and that they
will use reasonable care to perform their services, including the
collection, access, use, storage, disposal, transmission and disclosure of
information, as applicable. This can, and often should, include: limiting
access to only necessary employees; securing business facilities, data
centers, paper files, servers and back-up systems; implementing database
security protocols, including authentication and access controls;
encrypting highly sensitive personal information; and providing privacy
security training to employees. Contracts also should provide that vendors
are responsible for any unauthorized receipt, transmission, storage,
disposal, use, or disclosure of information, including the actions and/or
omissions of their employees and/or relevant third-parties who the vendors
retain.
> Expectations in the event of a security breach at the company – A company
should include a provision requiring a vendor’s reasonable cooperation if
the company experiences a breach. A company should have a contact at each
of its vendors, who is available 24/7 to help resolve a security breach.
Compliance with a company’s own obligations to deal with a breach
(including notification or remediation) could be delayed if a vendor
refuses to timely provide necessary information or copies of relevant
documents. A company also can negotiate to include an indemnification
provision requiring a vendor to reimburse the company for reasonable costs
incurred in responding to and mitigating damages caused by any security
breach related to the work performed by the vendor.
> Expectations in the event of a security breach at the vendor – A company
should demand reasonable notification if the vendor experiences a security
breach and require the vendor to take reasonable steps and use best efforts
to remediate the breach and to try to prevent future breaches. A company
should negotiate for a provision permitting the company to audit the
vendor’s security procedures and perhaps even to physically inspect the
vendor’s servers and data storage facilities if the data at issue is
particularly sensitive.
Monitoring
Due diligence and contractual provisions are necessary steps in managing
the cybersecurity risks that a vendor presents, but absent consistent and
proactive monitoring of the vendor relationship, including periodic audits
and updates to vendor contracts, all prior efforts to protect the company
in this respect will be undermined. Determining who within the company is
responsible for the relationship – HR? Procurement? Legal? – is critical
to help manage the vendor relationship.
> Schedule annual or semi-annual reviews of the vendor relationship – A
company not only should confirm that the vendor is following its
cybersecurity protocols but also should inquire if any material changes to
those protocols have been instituted that impact the manner in which the
vendor handles the company’s data. Depending on the level of sensitivity
of the data being handled by the vendor, a company may consider retaining a
third-party reviewer to evaluate the vendor.
> Update the vendor contract, as necessary – A company employee should be
responsible to review vendor contracts annually to determine if any changes
are necessary in view of cybersecurity concerns.
BYOD
Ransomware – where a hacker demands a ransom to unencrypt a company’s data
caused by malicious software that the hacker deposited onto the company’s
network to hold it hostage – certainly is a heightened concern for all
companies. It is the fastest growing malware targeting all industries,
with more than 50% growth in recent years. Every company is wary of
ransomware and is trying to do as much as possible to protect itself from
hackers. The best practices against ransomware are to (i) periodically
train and retrain your employees to be on the lookout for ransomware; (ii)
constantly backup you data systems; and (iii) split up the locations where
data is maintained to limit the damage in the event some servers fall
victim to ransomware. One thing that easily is overlooked, however, or is
afforded more limited consideration, is a company’s BYOD policy and
enforcement of that policy.
Permitting a company’s employees to use their own personal electronic
devices to work remotely will lower overhead costs and improve efficiency
but will bring a host of security and compliance concerns. The
cybersecurity and privacy protocols that the company established and
vigorously pursues inside the company must also be followed by its
employees when using their personal devices – home computers, tablets,
smartphones – outside the company. Employees likely are more interested,
however, in the ease of access to work remotely than in ensuring that
proper cybersecurity measures are followed with respect to their personal
devices. Are the employees using sophisticated passwords on their personal
devices or any passwords at all? Do the employees’ personal devices have
automatic locks? Are the employees using the most current software and
installing security updates?
These concerns are real. In May of 2017, the Wannacry ransomware attack
infected more than 200,000 computers in over 100 countries, incapacitating
companies and hospitals. Hackers took advantage of the failure to install
a patch to Microsoft Windows, which Microsoft had issued weeks earlier.
Even worse, it was discovered that some infected computers were using
outdated versions of Microsoft Windows for which the patch would not have
worked regardless. Companies cannot risk pouring significant resources
into establishing a comprehensive security program only to suffer a
ransomware attack or otherwise to have its efforts undercut by an employee
working remotely who failed to install appropriate security protocols on
his/her personal devices.
The dangers to be wary of include, among others: > Personal devices may not
automatically lock or have a timeout function. > Employees may not use
sophisticated passwords to protect their personal devices. > Employees may
use unsecured Wi-Fi hotspots to access the company’s systems, subjecting
the company to heightened risk. > Employees may access the company’s
systems using outdated software that is vulnerable to cyberattacks.
Combatting the Dangers
To address the added risks that accompany allowing BYOD, a company must
develop, disseminate and institute a comprehensive BYOD policy. That
policy should identify the necessary security protocols that the employee
must follow to use a personal device to work remotely, including, among
other things:
> Sophisticated passwords
> Automatic locks
> Encryption of data
> Installation of updated software and security apps
> Remote access from secure WiFi only
> Reporting procedures for lost/stolen devices
A company also should use mobile device management technology to permit the
company to remotely access the personal devices of its employees to install
any necessary software updates or to limit access to company systems. Of
course, the employee must be given notice that the company may use such
technology and the capabilities of that technology. Among other things,
mobile device management technology can:
> Create a virtual partition separating work data and personal data
> Limit an employee’s access to work data
> Allow a company to push security updates onto an employee’s personal
device
Enforcement
Similar to vendor management, the cybersecurity efforts undertaken by
having a robust BYOD policy in place, or even using mobile management
technology, are significantly weakened unless a company enforces the policy
it has instituted.
> A BYOD policy should be a prominent part of any employee cybersecurity
training.
> The company should inform the employee of the company’s right to
access/monitor/delete information from an employee’s personal device in the
event of, among other things, litigation and e-discovery requests, internal
investigations, or the employee’s termination.
CONCLUSION
Implementing the above recommendations will not guarantee a company will
not suffer a breach but will stem the threats created by third-party
aspects of its cybersecurity program. Even if a company ultimately suffers
a breach, having had these protections in place to administer the risks
associated with vendor management and BYOD certainly will help safeguard
the company from the scrutiny of regulators or the criticism of their
customers, which would be worse!
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