KRACK: Understanding the Vulnerability

KRACK: Understanding the Vulnerability

The KRACK WIFI vulnerability was announced by security researchers and the US-CERT today. This vulnerability can affect every modern WIFI network and has the potential to impact every device that connects to WIFI. If affected, KRACK could allow for any information sent over wifi to be stolen including passwords, credit card numbers, private emails, and so on. This vulnerability is a major problem for our enterprises and users. Vendors will be required to step up and provide fixes quickly and everyone throughout the organization to pitch in and follow the recommended remediation.

What is KRACK?

KRACK is a vulnerability in the most common security protocol, WPA2, used to authenticate WIFI connections to a secure network and is used by virtually every WIFI network. When this vulnerability is exploited, it permits an attacker to decrypt the session between a WIFI client (e.g. a mobile device) and the server (e.g. wireless router).  In certain cases, it would permit the alteration of content.  All versions of WPA2 are affected.

How serious is it for me?

KRACK is a very serious problem in the long run, but how concerned you should be in the short term depends upon analyzing your threats.  Threats of concern are those that are local (e.g. within range of your WIFI) and interested in compromising the confidentiality or integrity of your trusted network and the data it contains.  This means that it is not scalable to international actors such as crime cartels.  It can only be exploited by a local actor.

What actions should I be taking?

In the short term, we suggest revisiting your threat assessment and your staff training.  To assess if the threat is imminent, determine whether a local person (e.g.. disgruntled current or former staff)  who may be interested and capable of exploiting this vulnerability.  If this threat exists, a defensive strategy should be developed.

The specific strategy is very organization specific but should include working with law enforcement, upgrading monitoring and log analysis, changing of firewall rules or restructuring of trust zones. Staff should also be trained to pay close attention to HTTPS connections.  This protocol is a weak protection against exploitation, but if the user always checks the internal web resource is protected (e.g. lock icon or “https://” in the URL) the contents will still be encrypted as a  second line of defense. Users must be trained to pay attention to this as they may not receive alerts if it is missing.

Long-term, we recommend that you connect with all vendors of WIFI associated equipment that is used in your environment and determine their schedule for release of software patches and upgrades.  As soon as these are available, install and test each wireless device to ensure proper function.

What WIFI connections and activities are safe?

Bear in mind that “Safe” is a relative word in cybersecurity.  These are safer activities,

  • Use of SSL (HTTPS) connections encrypt data, but the user must pay close attention; and
  • Use of “Thinclients” (e.g. Citrix, VNC or other proprietary protocols) which allow connection to a data that is a picture of the data, rather than a copy of the data.
What WIFI connections are unsafe?

The following connections are not considered safe,

  • VPN connection assumed to be trusted and not using SSL (HTTPS);
  • Internal wireless connection where internal servers do not require SSL;
  • Home WIFI of remote users;
  • Anywhere that the login credentials to WIFI can be reused in another context (e.g. Active Directory);
  • Wherever WPA2 is used in any form to connect to a wireless access point.
Summary

To summarize, a new vulnerability has just come to light that impacts WIFI connections.  This vulnerability can only be carried out by a local actor, therefore you need to evaluate potential threats to staff and others.  If you determine an imminent threat, you should take action immediately.  Otherwise, install and test updates from WIFI associated equipment vendors to mitigate this vulnerability.  

For up-to-date information about the patches you need to secure your wifi, please visit ZD Net. 

QI Express to Present at 89th Annual AHIMA Convention

QI Express to Present at 89th Annual AHIMA Convention

The American Health Information Management Association (AHIMA) Convention and Exhibit is taking place this year in Los Angeles. This annual five-day conference brings together healthcare professionals to explore the vast world of information technology.

AHIMA American Health Information Management Association

The conference will examine the vital topics of health data analytics, informatics, security, and governance. As an increasing need for cyber solutions forms, conferences such as these become one of the main formats to discuss the changing climate of health technology. AHIMA allows presentations, panel discussions, and open forums to educate and advance the healthcare world.

QI Express is proud to announce, that Robert Zimmerman (C.E.O. and Founder) and Adam Bullian (Chief Operating Officer) will be presenting at the Privacy and Security Institute.

Robert Zimmerman, C.E.O.

Connect on LinkedIn

Robert will be kicking off the event early, co-presenting with Special Agent Boeing Shih of the FBI. Their discussion “Emerging Cybersecurity Threats In Small and Medium Sized Hospitals: A Conversation with the FBI Cybersecurity Task Force and Industry Experts” expects to draw a big turnout, as this issue is prevalent and growing in the industry. Robert and Boeing will provide insights into threats that can affect organizations, as well as provide guidance on the best practices on implementing prevention techniques. This panel will be on Saturday, October 7th at 9:15 am.

Adam Bullian, C.O.O.

Connect on Linkedin

Adam will be presenting later that day on “The Essentials of Auditing and Managing Business Associates.” This discussion will cover how healthcare organizations are growing more reliant on vendors to deliver critical business services. As more associates are added to the business chain, more vulnerabilities arise and the risk grows. Adam will provide practical steps that hospitals of all sizes can take to understand, evaluate, validate, and manage the safeguards our business associates are applying. Adam’s discussion will be on Saturday, October 7th at 1:45 pm.

QI Express’s solutions include Security Risk Assessments, Security Readiness for Small and Medium-Sized Businesses, Security Awareness Training, HIPAA HITRUST Audit and Certification, and Emergency Preparedness.

For more information on AHIMA please visit

http://www.ahima.org/For a schedule of AHIMA events please visit http://www.ahima.org/convention/schedule

We look forward to seeing you there! To request a demo or would like more information about our services, please fill out the form below. 

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Details on the Largest Data Breach Settlement in History 

Details on the Largest Data Breach Settlement in History 

On Friday, attorneys announced a $115 million settlement to customers affected by the 2015 Anthem data breach.  It is believed to be the largest settlement related to a data breach in history.  Approximately 79 million people were affected by the breach.  The settlement funds will be used to provide two additional years of credit monitoring to affected individuals or cash for those already enrolled in monitoring.  This is in addition to the initial two years of credit monitoring previously.

The February 2015 breach was caused by an unknown hacker who accessed a database with personal information.  There has been no evidence that the information was released on the cybercrime underground, which leads some to theorize that it was the work of a state-sponsored hacker.

This settlement is in additional to the $260 million of security improvement, remediation and clean-up which followed the breach bringing the total costs associated with this breach to $375 million.

Do These Things Right Now To Defend Against WannaCry

Do These Things Right Now To Defend Against WannaCry

As you probably heard, a massive ransomware attacked swept through networks around the world on Friday. It appears to have started in the healthcare industry, thus underlying the vulnerabilities within the entire industry. While the ways to defend or prevent this attack are nothing new, here are the three things you should do right now.

  1. Update All Patches:  Wannacry exploits a vulnerability in the Windows OS.  Microsoft has released a patch to correct this vulnerability, including for Windows versions it technically no longer supports.  Be sure ALL patches, especially Windows patches, are up to date on all workstations and mobile devices.
  2. Re-Train Staff On E-mail Best Practices: Wannacry is initially delivered through an e-mail attachment or link.  You should remind all staff immediately to be aware of ALL links and attachments they receive, especially in the next few days.  Everything about an e-mail with a link or an attachment should be scrutinized before opening a link or downloading an attachment.  If anything seems suspicious or out of place, contact the sender to confirm its authenticity or contact your IT manager for further instructions.
  3. Validate Backups:  If patching and training are ineffective, your last line of defense against WannaCry is having up to date backups that are segmented from the rest of your network and are conducted with a high degree of frequency.  You should also have recently tested your backup to ensure you can restore your systems if necessary.

Despite what you might have heard in various news reports, we expect this ransomware attack to continue to spread for the next several days or weeks. You should take these three steps immediately to prevent your organization from falling victim to this attack.  We will send additional updates as new information warrants.  Let us know if you have any questions.

Preventing Insider Threats

Preventing Insider Threats

No one likes to think about it, but malicious attacks by an insider and other insider threats are the cause of a significant number of healthcare data breaches.  They can be from a disgruntled employee, a recently terminated member of the staff, or even someone who is being bribed to provide patient information.  While they may be some of the hardest attacks to guard against, they are preventable.  Here are a few steps to keep in mind,

  • Screen New Hires:  One of the best prevention methods is to not hire someone who turns out to be a malicious employee in the first place.  You may consider completing a background check on all new hires and even periodic checks on current staff members.  While not an exact science, it may help to identify potential bad actors before they cause any damage;

  • Terminate Employees Immediately:  Often when employees leave any organization there can be hard feelings which potentially leads to irrational decisions.  To help guard against this, you should terminate all access to PHI immediately upon the employee leaving the organization.  Any delay in terminating access can leave you susceptible to the whims of a disgruntled former employee;

  • Perform Regular Access Audits:  Having a process in place to review logs of who within your organization is accessing PHI and what they are accessing can be a helpful tool in spotting a snooping employee. To truly be effective, the logs need to be reviewed on a consistent basis to identify an employee who is accessing PHI unnecessarily or to pick up suspicious patterns of access; and

  • Train Staff on Sanctions:  Training should include information that outlines the sanctions that can be imposed (both by you, the employer, and the authorities) for malicious actions involving the access or disclosure of PHI.

Admittedly, guarding against insider threats is a challenge, but it is possible.  If you implement reasonable protections then you can prevent or stop nefarious actions by your staff.

Lessons Learned From a $5.5M HIPAA Fine

Lessons Learned From a $5.5M HIPAA Fine

Last week the Department of Health and Human Services Office for Civil Rights (“OCR”) announced another large HIPAA fine.  This instance is a $5.5 million fine with Memorial Healthcare System (“MHS”). Unfortunately, some of the issues that led to the breach, and thus the settlement, were highly preventable, and therefore are worth pointing out.  The primary issues included,

  • Failing to implement its own policies and procedures for modifying/terminating access to PHI;

  • Failing to review records of PHI accessed by staff; and

  • Failing to act on risks identified during a security risk assessment.

Specifically, for over a year MHS failed to close the account of a terminated employee.  That account was used to access PHI affecting more than 80,000 individuals.

This highlights the need for several things.  First, you must have a specific process in place to terminate accounts when employees leave.  This typically requires HR and IT to work closely together.  If you don’t have a smooth process, consider working closely with both departments to establish a consistent procedure.

Second, you should periodically review who is accessing PHI.  If MHS had done this they would likely have noticed that an account of a terminated employee was not only still active, but was being utilized to access PHI.  As we have discussed in the past, the reviews can be a high frequency sample that is conducted on a consistent schedule, rather than an exhaustive review of all accounts and access levels.

Additionally, MHS identified many of these items as causing potential risk to the organization through several Security Risk Assessments.  However, it failed to do anything to remediate the issues.  Much significance has been placed on conducting a risk assessment, but little has been done to highlight the need that identified risks need to be corrected.  One output of your risk assessment should be a prioritized list of items that need remediation.  You should be establishing milestones along the way to correct these issues and tracking your progress.

Finally, MHS failed to implement the policies and procedures it had in place on many of these issues.  Having policies and procedures that outline your safeguards is important, but following your documentation is absolutely critical.  HIPAAcompliance is as much about compliance with your own policies and procedures as it is doing what the rule requires.  This is one reason why it is important to frequently review your policies and procedures to ensure you are doing what those documents outline.

In summary, this large breach fine highlightsthe fact that protecting patient information is not about high tech solutions, but rather about doing the little things.  Not doing some basic tasks compounds the issues and exacerbates the damage.