• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Cisco fixed critical ISE flaws allowing Root-level remote code execution

 | 

U.S. CISA adds AMI MegaRAC SPx, D-Link DIR-859 routers, and Fortinet FortiOS flaws to its Known Exploited Vulnerabilities catalog

 | 

CitrixBleed 2: The nightmare that echoes the 'CitrixBleed' flaw in Citrix NetScaler devices

 | 

Hackers deploy fake SonicWall VPN App to steal corporate credentials

 | 

Mainline Health Systems data breach impacted over 100,000 individuals

 | 

Disrupting the operations of cryptocurrency mining botnets

 | 

Prometei botnet activity has surged since March 2025

 | 

The U.S. House banned WhatsApp on government devices due to security concerns

 | 

Russia-linked APT28 use Signal chats to target Ukraine official with malware

 | 

China-linked APT Salt Typhoon targets Canadian Telecom companies

 | 

U.S. warns of incoming cyber threats following Iran airstrikes

 | 

McLaren Health Care data breach impacted over 743,000 people

 | 

American steel giant Nucor confirms data breach in May attack

 | 

The financial impact of Marks & Spencer and Co-op cyberattacks could reach £440M

 | 

Iran-Linked Threat Actors Cyber Fattah Leak Visitors and Athletes' Data from Saudi Games

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 50

 | 

Security Affairs newsletter Round 529 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

Iran confirmed it shut down internet to protect the country against cyberattacks

 | 

Godfather Android trojan uses virtualization to hijack banking and crypto apps

 | 

Cloudflare blocked record-breaking 7.3 Tbps DDoS attack against a hosting provider

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Malware
  • Johannesburg residents left in the dark after a ransomware attack at City Power

Johannesburg residents left in the dark after a ransomware attack at City Power

Pierluigi Paganini July 26, 2019

South African electric utility City Power that provides energy to the city of Johannesburg, has suffered serious disruptions after a ransomware attack.

A ransomware infected systems at City Power, an electricity provider in the city of Johannesburg, South Africa, and some residents were left without power.

The energy utility informed its customers via Twitter of the ransomware attack that encrypted its network, including all its databases and applications.

#Update City Power has been hit by a Ransomware virus. it has encrypted all our databases, applications and network. Currently our ICT department is cleaning and rebuilding all impacted applications.^GR

— @CityPowerJhb (@CityPowerJhb) July 25, 2019

The attack took place early on Thursday and paralyzed the electricity vending systems making it impossible for the customers to buy electricity units using its prepaid system.

City Power customers can pay what they consume thanks to prepaid power meters.

Officials confirmed that the attack also impacted their “response time to logged calls as some of internal systems to dispatch and order material have been slowed by the impact,”

#JoburgUpdates @CityPowerJhb: This will also affected our response time to logged calls as some of internal systems to dispatch and order material have been slowed by the impact ^GZ

— City of Joburg (@CityofJoburgZA) July 25, 2019

Fortunately, after a few hours after the attack was disclosed, the City of Johannesburg restored operations for most of the impacted applications and networks. The City Power website and systems that manage the invoices remained offline.

The good news is that personal information was not compromised in the attack. At the time of writing, City Power did not provide info about the type of ransomware that infected its system or how the infection took place.

“Ransomware virus is known globally to be operated by syndicates seeking to solicit money. We want to assure residents of Johannesburg that City Power systems were able to proactively intercept this and managed to deal with it quickly,” said the company.

In recent months, other municipalities were infected by ransomware and in some cases, officials paid ransom demands, such as Riviera Beach City, Lake City, Florida, and Jackson County, Georgia, and La Porte.

[adrotate banner=”9″] [adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – Johannesburg, ransomare)

[adrotate banner=”5″]

[adrotate banner=”13″]


facebook linkedin twitter

City Power Hacking information security news Johannersburg malware Pierluigi Paganini ransomware Security Affairs Security News

you might also like

Pierluigi Paganini June 26, 2025
Cisco fixed critical ISE flaws allowing Root-level remote code execution
Read more
Pierluigi Paganini June 26, 2025
U.S. CISA adds AMI MegaRAC SPx, D-Link DIR-859 routers, and Fortinet FortiOS flaws to its Known Exploited Vulnerabilities catalog
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Cisco fixed critical ISE flaws allowing Root-level remote code execution

    Security / June 26, 2025

    U.S. CISA adds AMI MegaRAC SPx, D-Link DIR-859 routers, and Fortinet FortiOS flaws to its Known Exploited Vulnerabilities catalog

    Security / June 26, 2025

    CitrixBleed 2: The nightmare that echoes the 'CitrixBleed' flaw in Citrix NetScaler devices

    Hacking / June 26, 2025

    Hackers deploy fake SonicWall VPN App to steal corporate credentials

    Hacking / June 25, 2025

    Mainline Health Systems data breach impacted over 100,000 individuals

    Data Breach / June 25, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT