Mass Transit - 19

Transit Cybersecurity
as these will limit how far the
ransomware, or other malware,
can spread once it gets inside
the agency's network. Attackers
always seek administrator passwords and protecting those accounts should be taken seriously
by limiting where and when administrator accounts are used.
Agencies should also have active security monitoring of any unusual network activity, including
SIEM (security information and
event management), EDR (endpoint detection and response),
intrusion detection/prevention
systems (IDS/IPS) and exfiltration
monitoring. Additionally, agencies
should use email whitelisting, robust malware detection tools and
keep all systems updated with
the latest software and security
patches. Another good policy is
to engage outside cybersecurity
consultants to test the agency's

The standard defense against
ransomware - backing up all important data and building redundancy into these systems - will
not be enough against these multistage attacks, but it is a solid first
step. For many agencies, getting the
ticketing systems back into operation quickly is the most immediate
priority. Making regular backups
and ensuring that the backups cannot be deleted or corrupted, even
by an administrator, is critical to
maintaining this capability.
Another critical step is to implement robust data encryption.
This will protect the data even if
it is stolen by a hacker. Employees
should also be instructed how to
safely store sensitive data without
sending it via email or storing it on
workstations and shared folders.
Network segmentation and
administrator account segmentation are also top priorities,

In addition to preventative security, transit agencies
must also plan for how to handle a successful attack.

-RANDY PARGMAN, Binary Defense

network (i.e., a penetration test) to
look for any security weaknesses
ahead of time.
In addition to preventative security, transit agencies must also
plan for how to handle a successful attack. They need to develop
a response plan, which includes
contacting the FBI and/or U.S. Secret Service to know how to report
incidents and preserve the digital
evidence for investigators. Establishing a relationship with incident
response companies is also critical.
Although ransomware attacks
are becoming more complicated,
transit agencies can drastically
lower their risk by taking a proactive approach and preparing in
advance.

Randy Pargman is the
senior director of
Threat Hunting and
Counterintelligence
at Binary Defense.

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NOVEMBER 2020 | MassTransitmag.com | Mass Transit |

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