Get to know # Ariel Zelivansky *** ** * ** *** Blogs by Ariel Zelivansky Sort By: Recent Recent Popular *** ** * ** *** [![OpenSSL Vulnerability Rating Downgraded to High](https://www.paloaltonetworks.com/blog/wp-content/uploads/2022/10/iStock-1194430859-edit-1280x1280-1.jpeg)](https://www.paloaltonetworks.com/blog/cloud-security/prepare-openssl-vulnerability/) ## [Announcement](https://www.paloaltonetworks.com/blog/category/announcement/?ts=markdown), [Cloud Workload Protection](https://www.paloaltonetworks.com/blog/category/cloud-workload-protection/?ts=markdown), [DevSecOps](https://www.paloaltonetworks.com/blog/category/devsecops/?ts=markdown), [Web Application \& API Security](https://www.paloaltonetworks.com/blog/cloud-security/category/web-application-api-security/?ts=markdown) ### [OpenSSL Vulnerability Rating Downgraded to High](https://www.paloaltonetworks.com/blog/cloud-security/prepare-openssl-vulnerability/) OpenSSL patches high severity vulnerabilities that could impact Apache and Nginx web servers. Stay tuned for updates on CVE-2022-3786 \& CVE-2022-3602. Oct 29, 2022 By [Hari Srinivasan](https://www.paloaltonetworks.com/blog/author/hari-srinivasan/?ts=markdown "Posts by Hari Srinivasan"), [Daniel Prizmant](https://www.paloaltonetworks.com/blog/author/daniel-prizmant/?ts=markdown "Posts by Daniel Prizmant"), [Taylor Smith](https://www.paloaltonetworks.com/blog/author/taylor-smith/?ts=markdown "Posts by Taylor Smith") and [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") *** ** * ** *** [![Unit 42 Cloud Research Coming Up in Vegas: Must-see talks at Black Hat, DEF CON and Cloud Village](https://www.paloaltonetworks.com/blog/wp-content/uploads/2022/07/NetSec-Adhoc-Updated-Blog-Image-Resize-691171106.png)](https://www.paloaltonetworks.com/blog/cloud-security/prisma-cloud-def-con-black-hat-usa-cloud-village-2/) ## [Cloud Workload Protection Platform](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-workload-protection-platform/?ts=markdown), [Event](https://www.paloaltonetworks.com/blog/category/event/?ts=markdown) ### [Unit 42 Cloud Research Coming Up in Vegas: Must-see talks at Black Hat, DEF...](https://www.paloaltonetworks.com/blog/cloud-security/prisma-cloud-def-con-black-hat-usa-cloud-village-2/) Join Prisma Cloud at DEF CON 30 Cloud Village and the Black Hat USA 2022 conference to learn the latest Unit 42 cloud threat research Jul 26, 2022 By [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") *** ** * ** *** [![Uncovering FabricScape](https://www.paloaltonetworks.com/blog/wp-content/uploads/2022/06/Focused.jpg)](https://www.paloaltonetworks.com/blog/2022/06/fabricscape/) ## [Announcement](https://www.paloaltonetworks.com/blog/category/announcement/?ts=markdown), [Cloud Security](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-security/?ts=markdown) ### [Uncovering FabricScape](https://www.paloaltonetworks.com/blog/2022/06/fabricscape/) Palo Alto Networks teams up with Microsoft to mitigate new cloud vulnerability (CVE-2022-30137). Jun 28, 2022 By [Aviv Sasson](https://www.paloaltonetworks.com/blog/author/aviv-sasson/?ts=markdown "Posts by Aviv Sasson") and [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") *** ** * ** *** [![Prisma Cloud Mitigations for SpringShell and Recent Spring Vulnerabilities: CVE-2022-22963, CVE-2022-22965](https://www.paloaltonetworks.com/blog/wp-content/uploads/2021/12/Using-Phone-LI.jpg)](https://www.paloaltonetworks.com/blog/cloud-security/recent-spring-vulnerabilities/) ## [Announcement](https://www.paloaltonetworks.com/blog/category/announcement/?ts=markdown), [Cloud Posture Security](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-security-posture-management/?ts=markdown), [Cloud Workload Protection Platform](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-workload-protection-platform/?ts=markdown), [Web Application \& API Security](https://www.paloaltonetworks.com/blog/cloud-security/category/web-application-api-security/?ts=markdown) ### [Prisma Cloud Mitigations for SpringShell and Recent Spring Vulnerabilities:...](https://www.paloaltonetworks.com/blog/cloud-security/recent-spring-vulnerabilities/) CVE-2022-22965 (SpringShell), a Remote Code Execution (RCE) affecting the Spring Framework was published on March 31, 2022. This blog details Prisma Cloud's mitigations capabilities for SpringShell Mar 31, 2022 By [Nathaniel Quist](https://www.paloaltonetworks.com/blog/author/nathaniel-q-quist-sr-threat-researcher-public-cloud-security/?ts=markdown "Posts by Nathaniel Quist"), [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky"), [Aviv Sasson](https://www.paloaltonetworks.com/blog/author/aviv-sasson/?ts=markdown "Posts by Aviv Sasson"), [Alok Tongaonkar](https://www.paloaltonetworks.com/blog/author/alok-tongaonkar/?ts=markdown "Posts by Alok Tongaonkar") and [Artur Avetisyan](https://www.paloaltonetworks.com/blog/author/artur-avetisyan/?ts=markdown "Posts by Artur Avetisyan") *** ** * ** *** [![Unit 42 Discloses Newly Discovered Vulnerabilities in GKE Autopilot](https://www.paloaltonetworks.com/blog/wp-content/uploads/2022/03/Co-workers-at-Window.jpg)](https://www.paloaltonetworks.com/blog/2022/03/gke-autopilot-vulnerabilities/) ## [DevSecOps](https://www.paloaltonetworks.com/blog/cloud-security/category/devsecops/?ts=markdown), [Points of View](https://www.paloaltonetworks.com/blog/category/points-of-view/?ts=markdown), [Products and Services](https://www.paloaltonetworks.com/blog/category/products-and-services/?ts=markdown) ### [Unit 42 Discloses Newly Discovered Vulnerabilities in GKE Autopilot](https://www.paloaltonetworks.com/blog/2022/03/gke-autopilot-vulnerabilities/) Understand what recently discovered vulnerabilities and attack techniques in GKE Autopilot reveal about best practices for securing Kubernetes. Mar 08, 2022 By [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") and [Yuval Avrahami](https://www.paloaltonetworks.com/blog/author/yuval-avrahami/?ts=markdown "Posts by Yuval Avrahami") *** ** * ** *** Load more *** ** * ** *** Blogs by Ariel Zelivansky Sort By: Popular Popular Recent *** ** * ** *** [![Unit 42 Cloud Research Coming Up in Vegas: Must-see talks at Black Hat, DEF CON and Cloud Village](https://www.paloaltonetworks.com/blog/wp-content/uploads/2022/07/NetSec-Adhoc-Updated-Blog-Image-Resize-691171106.png)](https://www.paloaltonetworks.com/blog/cloud-security/prisma-cloud-def-con-black-hat-usa-cloud-village-2/) ## [Cloud Workload Protection Platform](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-workload-protection-platform/?ts=markdown), [Event](https://www.paloaltonetworks.com/blog/category/event/?ts=markdown) ### [Unit 42 Cloud Research Coming Up in Vegas: Must-see talks at Black Hat, DEF...](https://www.paloaltonetworks.com/blog/cloud-security/prisma-cloud-def-con-black-hat-usa-cloud-village-2/) Join Prisma Cloud at DEF CON 30 Cloud Village and the Black Hat USA 2022 conference to learn the latest Unit 42 cloud threat research Jul 26, 2022 By [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") *** ** * ** *** [![DEF CON Cloud Village and Black Hat USA: See New Unit 42 Cloud Research](https://www.paloaltonetworks.com/blog/wp-content/uploads/2021/07/Man-on-the-Move.jpg)](https://www.paloaltonetworks.com/blog/cloud-security/prisma-cloud-def-con-black-hat-usa-cloud-village/) ## [Cloud Workload Protection Platform](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-workload-protection-platform/?ts=markdown), [Customer Spotlight](https://www.paloaltonetworks.com/blog/category/customer-spotlight/?ts=markdown) ### [DEF CON Cloud Village and Black Hat USA: See New Unit 42 Cloud Research](https://www.paloaltonetworks.com/blog/cloud-security/prisma-cloud-def-con-black-hat-usa-cloud-village/) Join Prisma Cloud at DEF CON 29 Cloud Village and the Black Hat USA 2021 conference to learn the latest Unit 42 cloud threat research. Jul 28, 2021 By [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") *** ** * ** *** [![Kubernetes – Vulnerable to Denial-of-Service Attacks](https://www.paloaltonetworks.com/blog/wp-content/uploads/2019/02/corp-blog-cloud-600x300.png)](https://www.paloaltonetworks.com/blog/2019/08/cloud-kubernetes-vulnerable-denial-service-attacks/) ## [Secure the Cloud](https://www.paloaltonetworks.com/blog/category/secure-the-cloud/?ts=markdown) ### [Kubernetes -- Vulnerable to Denial-of-Service Attacks](https://www.paloaltonetworks.com/blog/2019/08/cloud-kubernetes-vulnerable-denial-service-attacks/) What you need to know about the two new vulnerabilities disclosed by the Kubernetes Product Security Committee Aug 22, 2019 By [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") and [John Morello](https://www.paloaltonetworks.com/blog/author/john-morello/?ts=markdown "Posts by John Morello") *** ** * ** *** [![Update: Prisma Cloud Addresses Log4Shell: CVE-2021-44228, CVE-2021-45046 Mitigations](https://www.paloaltonetworks.com/blog/wp-content/uploads/2021/10/GettyImages-1253211227.jpg)](https://www.paloaltonetworks.com/blog/cloud-security/log-4-shell-vulnerability/) ## [Announcement](https://www.paloaltonetworks.com/blog/category/announcement/?ts=markdown), [Cloud Workload Protection Platform](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-workload-protection-platform/?ts=markdown) ### [Update: Prisma Cloud Addresses Log4Shell: CVE-2021-44228, CVE-2021-45046 Mi...](https://www.paloaltonetworks.com/blog/cloud-security/log-4-shell-vulnerability/) Remote code execution vulnerability known as Log4Shell was just discovered. Read Prisma Cloud's recommendations for mitigation. Dec 12, 2021 By [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky"), [Elad Shuster](https://www.paloaltonetworks.com/blog/author/elad-shuster/?ts=markdown "Posts by Elad Shuster"), [Eran Yanay](https://www.paloaltonetworks.com/blog/author/eran-yanay/?ts=markdown "Posts by Eran Yanay"), [Artur Avetisyan](https://www.paloaltonetworks.com/blog/author/artur-avetisyan/?ts=markdown "Posts by Artur Avetisyan"), [Alexandre Cezar](https://www.paloaltonetworks.com/blog/author/alexandre-cezar/?ts=markdown "Posts by Alexandre Cezar") and [Sharon Ben Zeev](https://www.paloaltonetworks.com/blog/author/sharon-ben-zeev/?ts=markdown "Posts by Sharon Ben Zeev") *** ** * ** *** [![Unit 42 Discovers First Known Malware Targeting Windows Containers](https://www.paloaltonetworks.com/blog/wp-content/uploads/2021/06/Unit42-Siloscape-21-illustration_yellow.jpg)](https://www.paloaltonetworks.com/blog/2021/06/siloscape-malware-windows-containers/) ## [Announcement](https://www.paloaltonetworks.com/blog/category/announcement/?ts=markdown), [Cloud Workload Protection Platform](https://www.paloaltonetworks.com/blog/cloud-security/category/cloud-workload-protection-platform/?ts=markdown), [Points of View](https://www.paloaltonetworks.com/blog/category/points-of-view/?ts=markdown) ### [Unit 42 Discovers First Known Malware Targeting Windows Containers](https://www.paloaltonetworks.com/blog/2021/06/siloscape-malware-windows-containers/) The Unit 42 cybersecurity consulting group published research on Siloscape, the first known malware targeting Windows containers. Jun 07, 2021 By [Ariel Zelivansky](https://www.paloaltonetworks.com/blog/author/ariel-zelivansky/?ts=markdown "Posts by Ariel Zelivansky") and [Matthew Chiodi](https://www.paloaltonetworks.com/blog/author/matthew-chiodi/?ts=markdown "Posts by Matthew Chiodi") *** ** * ** *** Load more {#footer} {#footer} ## Products and Services * [AI-Powered Network Security Platform](https://www.paloaltonetworks.com/network-security?ts=markdown) * [Secure AI by Design](https://www.paloaltonetworks.com/precision-ai-security/secure-ai-by-design?ts=markdown) * [Prisma AIRS](https://www.paloaltonetworks.com/prisma/prisma-ai-runtime-security?ts=markdown) * [AI Access Security](https://www.paloaltonetworks.com/sase/ai-access-security?ts=markdown) * [Cloud Delivered Security Services](https://www.paloaltonetworks.com/network-security/security-subscriptions?ts=markdown) * [Advanced Threat Prevention](https://www.paloaltonetworks.com/network-security/advanced-threat-prevention?ts=markdown) * [Advanced URL Filtering](https://www.paloaltonetworks.com/network-security/advanced-url-filtering?ts=markdown) * [Advanced WildFire](https://www.paloaltonetworks.com/network-security/advanced-wildfire?ts=markdown) * [Advanced DNS Security](https://www.paloaltonetworks.com/network-security/advanced-dns-security?ts=markdown) * [Enterprise Data Loss Prevention](https://www.paloaltonetworks.com/sase/enterprise-data-loss-prevention?ts=markdown) * [Enterprise IoT Security](https://www.paloaltonetworks.com/network-security/enterprise-device-security?ts=markdown) * [Medical IoT Security](https://www.paloaltonetworks.com/network-security/medical-device-security?ts=markdown) * [Industrial OT Security](https://www.paloaltonetworks.com/network-security/medical-device-security?ts=markdown) * [SaaS Security](https://www.paloaltonetworks.com/sase/saas-security?ts=markdown) * [Next-Generation Firewalls](https://www.paloaltonetworks.com/network-security/next-generation-firewall?ts=markdown) * [Hardware Firewalls](https://www.paloaltonetworks.com/network-security/hardware-firewall-innovations?ts=markdown) * [Software Firewalls](https://www.paloaltonetworks.com/network-security/software-firewalls?ts=markdown) * [Strata Cloud Manager](https://www.paloaltonetworks.com/network-security/strata-cloud-manager?ts=markdown) * [SD-WAN for NGFW](https://www.paloaltonetworks.com/network-security/sd-wan-subscription?ts=markdown) * [PAN-OS](https://www.paloaltonetworks.com/network-security/pan-os?ts=markdown) * [Panorama](https://www.paloaltonetworks.com/network-security/panorama?ts=markdown) * [Secure Access Service Edge](https://www.paloaltonetworks.com/sase?ts=markdown) * [Prisma SASE](https://www.paloaltonetworks.com/sase?ts=markdown) * [Application Acceleration](https://www.paloaltonetworks.com/sase/app-acceleration?ts=markdown) * [Autonomous Digital Experience Management](https://www.paloaltonetworks.com/sase/adem?ts=markdown) * [Enterprise DLP](https://www.paloaltonetworks.com/sase/enterprise-data-loss-prevention?ts=markdown) * [Prisma Access](https://www.paloaltonetworks.com/sase/access?ts=markdown) * [Prisma Browser](https://www.paloaltonetworks.com/sase/prisma-browser?ts=markdown) * [Prisma SD-WAN](https://www.paloaltonetworks.com/sase/sd-wan?ts=markdown) * [Remote Browser Isolation](https://www.paloaltonetworks.com/sase/remote-browser-isolation?ts=markdown) * [SaaS Security](https://www.paloaltonetworks.com/sase/saas-security?ts=markdown) * [AI-Driven Security Operations Platform](https://www.paloaltonetworks.com/cortex?ts=markdown) * [Cloud Security](https://www.paloaltonetworks.com/cortex/cloud?ts=markdown) * [Cortex Cloud](https://www.paloaltonetworks.com/cortex/cloud?ts=markdown) * [Application Security](https://www.paloaltonetworks.com/cortex/cloud/application-security?ts=markdown) * [Cloud Posture Security](https://www.paloaltonetworks.com/cortex/cloud/cloud-posture-security?ts=markdown) * [Cloud Runtime Security](https://www.paloaltonetworks.com/cortex/cloud/runtime-security?ts=markdown) * [Prisma Cloud](https://www.paloaltonetworks.com/prisma/cloud?ts=markdown) * [AI-Driven SOC](https://www.paloaltonetworks.com/cortex?ts=markdown) * [Cortex XSIAM](https://www.paloaltonetworks.com/cortex/cortex-xsiam?ts=markdown) * [Cortex XDR](https://www.paloaltonetworks.com/cortex/cortex-xdr?ts=markdown) * [Cortex XSOAR](https://www.paloaltonetworks.com/cortex/cortex-xsoar?ts=markdown) * [Cortex Xpanse](https://www.paloaltonetworks.com/cortex/cortex-xpanse?ts=markdown) * [Unit 42 Managed Detection \& Response](https://www.paloaltonetworks.com/cortex/managed-detection-and-response?ts=markdown) * [Managed XSIAM](https://www.paloaltonetworks.com/cortex/managed-xsiam?ts=markdown) * [Threat Intel and Incident Response Services](https://www.paloaltonetworks.com/unit42?ts=markdown) * [Proactive Assessments](https://www.paloaltonetworks.com/unit42/assess?ts=markdown) * [Incident Response](https://www.paloaltonetworks.com/unit42/respond?ts=markdown) * [Transform Your Security Strategy](https://www.paloaltonetworks.com/unit42/transform?ts=markdown) * [Discover Threat Intelligence](https://www.paloaltonetworks.com/unit42/threat-intelligence-partners?ts=markdown) ## Company * [About Us](https://www.paloaltonetworks.com/about-us?ts=markdown) * [Careers](https://jobs.paloaltonetworks.com/en/) * [Contact Us](https://www.paloaltonetworks.com/company/contact-sales?ts=markdown) * [Corporate Responsibility](https://www.paloaltonetworks.com/about-us/corporate-responsibility?ts=markdown) * [Customers](https://www.paloaltonetworks.com/customers?ts=markdown) * [Investor Relations](https://investors.paloaltonetworks.com/) * [Location](https://www.paloaltonetworks.com/about-us/locations?ts=markdown) * [Newsroom](https://www.paloaltonetworks.com/company/newsroom?ts=markdown) ## Popular Links * [Blog](https://www.paloaltonetworks.com/blog/?ts=markdown) * [Communities](https://www.paloaltonetworks.com/communities?ts=markdown) * [Content Library](https://www.paloaltonetworks.com/resources?ts=markdown) * [Cyberpedia](https://www.paloaltonetworks.com/cyberpedia?ts=markdown) * [Event Center](https://events.paloaltonetworks.com/) * [Manage Email Preferences](https://start.paloaltonetworks.com/preference-center) * [Products A-Z](https://www.paloaltonetworks.com/products/products-a-z?ts=markdown) * [Product Certifications](https://www.paloaltonetworks.com/legal-notices/trust-center/compliance?ts=markdown) * [Report a Vulnerability](https://www.paloaltonetworks.com/security-disclosure?ts=markdown) * [Sitemap](https://www.paloaltonetworks.com/sitemap?ts=markdown) * [Tech Docs](https://docs.paloaltonetworks.com/) * [Unit 42](https://unit42.paloaltonetworks.com/) * [Do Not Sell or Share My Personal Information](https://panwedd.exterro.net/portal/dsar.htm?target=panwedd) ![PAN logo](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/pan-logo-dark.svg) * [Privacy](https://www.paloaltonetworks.com/legal-notices/privacy?ts=markdown) * [Trust Center](https://www.paloaltonetworks.com/legal-notices/trust-center?ts=markdown) * [Terms of Use](https://www.paloaltonetworks.com/legal-notices/terms-of-use?ts=markdown) * [Documents](https://www.paloaltonetworks.com/legal?ts=markdown) Copyright © 2026 Palo Alto Networks. All Rights Reserved * [![Youtube](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/youtube-black.svg)](https://www.youtube.com/user/paloaltonetworks) * [![Podcast](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/icons/podcast.svg)](https://www.paloaltonetworks.com/podcasts/threat-vector?ts=markdown) * [![Facebook](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/facebook-black.svg)](https://www.facebook.com/PaloAltoNetworks/) * [![LinkedIn](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/linkedin-black.svg)](https://www.linkedin.com/company/palo-alto-networks) * [![Twitter](https://www.paloaltonetworks.com/etc/clientlibs/clean/imgs/social/twitter-x-black.svg)](https://twitter.com/PaloAltoNtwks) * EN Select your language