DataBreaches.Net

Menu
  • About
  • Breach Notification Laws
  • Privacy Policy
  • Transparency Report
Menu

Security Breaches Don’t Affect Stock Price

Posted on January 19, 2018 by Dissent

Ah, I’m having flashbacks to the days when some of us debated whether the TJ Maxx breach would have any significant impact and how could we determine impact.  

Bruce Schneier cites  a research report,“Long-term market implications of data breaches, not,” by Russell Lange and Eric W. Burger.

From key findings:

  • While the difference in stock price between the sampled breached companies and their peers was negative (1.13%) in the first 3 days following announcement of a breach, by the 14th day the return difference had rebounded to + 0.05%, and on average remained positive through the period assessed.
  • For the differences in the breached companies’ betas and the beta of their peer sets, the differences in the means of 8 months pre-breach versus post-breach was not meaningful at 90, 180, and 360 day post-breach periods.

Read more on Security Boulevard.

 


Related:

  • North Country Healthcare responds to Stormous's claims of a breach
  • Gladney Adoption Center had serious data exposures in the past few months. What will they do to prevent more?
  • 70% of healthcare cyberattacks result in delayed patient care, report finds
  • Hackers Can Remotely Trigger the Brakes on American Trains and the Problem Has Been Ignored for Years
  • Back from the Brink: District Court Clears Air Regarding Individualized Damages Assessment in Data Breach Cases
  • Qilin Emerged as The Most Active Group, Exploiting Unpatched Fortinet Vulnerabilities
Category: Commentaries and Analyses

Post navigation

← Florida Department of State notifies 945 of breach involving the last four digits of their SSN
QOTD →

Now more than ever

"Stand with Ukraine:" above raised hands. The illustration is in blue and yellow, the colors of Ukraine's flag.

Search

Browse by Categories

Recent Posts

  • Scattered Spider Hijacks VMware ESXi to Deploy Ransomware on Critical U.S. Infrastructure
  • Hacker group “Silent Crow” claims responsibility for cyberattack on Russia’s Aeroflot
  • AIIMS ORBO Portal Vulnerability Exposing Sensitive Organ Donor Data Discovered by Researcher
  • Two Data Breaches in Three Years: McKenzie Health
  • Scattered Spider is running a VMware ESXi hacking spree
  • BreachForums — the one that went offline in April — reappears with a new founder/owner
  • Fans React After NASCAR Confirms Ransomware Breach
  • Allianz Life says ‘majority’ of customers’ personal data stolen in cyberattack (1)
  • Infinite Services notifying employees and patients of limited ransomware attack
  • The safe place for women to talk wasn’t so safe: hackers leak 13,000 user photos and IDs from the Tea app

No, You Can’t Buy a Post or an Interview

This site does not accept sponsored posts or link-back arrangements. Inquiries about either are ignored.

And despite what some trolls may try to claim: DataBreaches has never accepted even one dime to interview or report on anyone. Nor will DataBreaches ever pay anyone for data or to interview them.

Want to Get Our RSS Feed?

Grab it here:

https://databreaches.net/feed/

RSS Recent Posts on PogoWasRight.org

  • White House ordered to restore Medicaid funding to Planned Parenthood clinics
  • California Attorney General Announces $1.55M CCPA Settlement with Healthline.com
  • Canada’s Bill C-2 Opens the Floodgates to U.S. Surveillance
  • Wiretap Suits Pit Old Privacy Laws Against New AI Technology
  • Action against tiny Scottish charity sparks huge ICO row
  • Congress tries to outlaw AI that jacks up prices based on what it knows about you
  • Microsoft’s controversial Recall feature is now blocked by Brave and AdGuard

Have a News Tip?

Email: Tips[at]DataBreaches.net

Signal: +1 516-776-7756

Contact Me

Email: info[at]databreaches.net

Mastodon: Infosec.Exchange/@PogoWasRight

Signal: +1 516-776-7756

DMCA Concern: dmca[at]databreaches.net
© 2009 – 2025 DataBreaches.net and DataBreaches LLC. All rights reserved.