{"id":6073,"date":"2026-10-08T09:25:36","date_gmt":"2026-10-08T09:25:36","guid":{"rendered":"https:\/\/filter.watch\/english\/?p=6073"},"modified":"2026-10-23T09:30:04","modified_gmt":"2026-10-23T09:30:04","slug":"investigative-report-september-2026-revocation-of-security-certificates","status":"publish","type":"post","link":"https:\/\/filter.watch\/english\/2026\/10\/08\/investigative-report-september-2026-revocation-of-security-certificates\/","title":{"rendered":"When the Chain of Trust Breaks Certificate Revocations, Sanctions, and the Risks of \u201cNationalizing Trust\u201d on Iran\u2019s Internet"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">When a user in Iran attempts to access a banking website and their browser displays the warning \u201cYour connection is not private,\u201d the problem is not simply that the webpage has failed to load. The warning means the browser cannot reliably verify that the website actually belongs to the bank it claims to represent. Recent problems with website security certificates in Iran, affecting institutions from the Central Bank of Iran to the country's electronic payment network, Shaparak, show how Iranian users\u2019 secure access to essential services has become dependent on the decisions of foreign companies, commercial intermediaries, and domestic authorities.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The Central Bank\u2019s experience also demonstrates that replacing Western providers with a Chinese certificate issuer is not necessarily a sustainable solution. A certificate issued through the chain of the Chinese company TrustAsia was revoked before its scheduled expiration date. For users, the consequences of this instability include a heightened risk of phishing, repeated domain changes, the normalization of browser security warnings, and mounting pressure to trust a domestic root certificate authority whose scope of authority, auditing standards, and accountability mechanisms have not been adequately disclosed.<\/span><\/p>\n<h4><b>What Is SSL, and Why Does It Matter?<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">The term SSL remains common in public discussion, although the technology currently in use is more accurately called TLS. A TLS certificate can be understood as a website\u2019s digital identity document. It links a domain name to a cryptographic key and allows the browser to answer several essential questions:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Was the certificate issued for this specific domain?<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Is it still within its validity period?<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Which certificate authority issued it?<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Does the browser trust that certificate authority?<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Has the certificate been revoked before its expiration date?<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">If these checks are successful, the browser establishes an encrypted connection. Under normal conditions, parties positioned between the user and the website should not be able to easily read or alter the information being exchanged. At the same time, the certificate helps the browser confirm that the user is communicating with the same domain displayed in the address bar.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This identity-verification function is particularly important in online banking. Users submit sensitive information such as usernames, passwords, card numbers, CVV2 codes, and one-time passwords on banking and payment pages. Encryption alone is insufficient: a connection may be encrypted while the server at the other end is controlled by an attacker. This is why browsers interrupt the connection or display a prominent warning when they cannot verify the destination\u2019s identity.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">An invalid certificate does not necessarily mean that all data is being transmitted without encryption. More precisely, it means the browser cannot authenticate the other party through the conventional chain of trust. For a financial service, that uncertainty alone should be sufficient reason not to submit sensitive information.<\/span><\/p>\n<h4><b>From the Central Bank\u2019s Announcement to a Verifiable Revocation<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">On August 15, 2026 (24 Mordad 1405), the Central Bank of Iran<\/span> <a href=\"https:\/\/www.ibena.ir\/fa\/news\/185843\/%D8%A7%D8%B7%D9%84%D8%A7%D8%B9%DB%8C%D9%87-%D8%A8%D8%A7%D9%86%DA%A9-%D9%85%D8%B1%DA%A9%D8%B2%DB%8C-%D8%AF%D8%B1%D8%A8%D8%A7%D8%B1%D9%87-%DA%AF%D9%88%D8%A7%D9%87%DB%8C-%D8%A7%D9%85%D9%86%DB%8C%D8%AA%DB%8C-%D9%BE%D8%A7%DB%8C%DA%AF%D8%A7%D9%87-%D9%87%D8%A7%DB%8C-%D8%A7%D8%B7%D9%84%D8%A7%D8%B9-%D8%B1%D8%B3%D8%A7%D9%86%DB%8C\"><span style=\"font-weight: 400;\">announced<\/span><\/a><span style=\"font-weight: 400;\"> that the security certificates of several websites associated with the institution had been revoked by a \u201cforeign provider.\u201d<\/span><span style=\"font-weight: 400;\"> The announcement did not identify the provider, the affected domains, the certificate serial numbers, or the official reason for the revocations.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For one certificate covering the Central Bank\u2019s domains, however, there is<\/span> <a href=\"https:\/\/crt.sh\/?id=28283199926\"><span style=\"font-weight: 400;\">publicly verifiable evidence<\/span><\/a><span style=\"font-weight: 400;\">. <\/span><span style=\"font-weight: 400;\">The certificate covered <\/span><span style=\"font-weight: 400;\">cbi.ir<\/span><span style=\"font-weight: 400;\"> and <\/span><span style=\"font-weight: 400;\">*.cbi.ir<\/span><span style=\"font-weight: 400;\"> and was issued through the LiteSSL chain associated with TrustAsia.<\/span><span style=\"font-weight: 400;\"> Its validity period was scheduled to run from July 27, 2026, to February 11, 2027. It was revoked on August 10, several months before its scheduled expiration. <\/span><span style=\"font-weight: 400;\">The issuer\u2019s Certificate Revocation List recorded the reason as <\/span><span style=\"font-weight: 400;\">privilegeWithdrawn<\/span><span style=\"font-weight: 400;\">, indicating that a privilege or authorization associated with the certificate had been withdrawn.<\/span><\/p>\n<h4><b>Chinese Providers Also Revoke Iranian Certificates<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">TrustAsia is a Chinese company based in Shanghai, and its name appears in the certificate issuance records of several Iranian banks. As access to some Western providers became more difficult, Iranian banks\u2019 reliance on a Chinese company may have created the impression that China could offer a stable alternative independent of US sanctions. The revocation of the Central Bank\u2019s certificate demonstrated that this assumption is not reliable.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A company\u2019s Chinese ownership does not make it independent of the global WebPKI ecosystem. For TrustAsia certificates to be accepted without warnings by Chrome, Firefox, Safari, Android, or Windows, their chains must terminate at roots trusted by these products and comply with root-program requirements and industry standards. This dependence exposes the company to the rules and risk assessments of the global market.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Chinese companies may also comply with US sanctions even when they are not directly required to do so, in order to preserve banking relationships, maintain access to international markets, or reduce commercial risk. A knowledgeable source who spoke to Filterwatch on condition of anonymity said that Chinese companies do, in practice, comply with US sanctions against Iran. This account is consistent with the TrustAsia revocation, but it does not replace an official explanation from the issuer regarding the specific Central Bank certificate.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Public data also show that TrustAsia has issued certificates for domains associated with Bank Melli, Bank Mellat, Bank Sepah, Bank Tejarat, Bank Refah, Post Bank, Bank Maskan, and several private banks. The appearance of a certificate in public records does not by itself prove that it is currently installed on a bank\u2019s production service. Nevertheless, TrustAsia\u2019s extensive presence indicates that China has become an important certificate-supply route for Iran\u2019s banking network.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The short answer to the question \u201cCan China replace the West?\u201d is therefore no. China may provide a temporary alternative route, but the Central Bank certificate revocation shows that this route is not insulated from international legal and commercial pressures.<\/span><\/p>\n<h4><b>Shaparak: When the Crisis Reaches the Payment Page<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">In October 2026, reports emerged that a wildcard certificate covering <\/span><span style=\"font-weight: 400;\">*.shaparak.ir<\/span><span style=\"font-weight: 400;\"> had been revoked.<\/span><span style=\"font-weight: 400;\"> The certificate associated with these reports was issued by SSL.com and was not scheduled to expire for several more months. Public records establish that the certificate was issued, but without a signed OCSP response, a corresponding CRL entry, or an official explanation from SSL.com, the reported revocation cannot be conclusively attributed to sanctions.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Shaparak is particularly important because subdomains of <\/span><span style=\"font-weight: 400;\">shaparak.ir<\/span><span style=\"font-weight: 400;\"> are used by payment service providers for online payment pages.<\/span><span style=\"font-weight: 400;\"> Users enter card numbers, expiration dates, CVV2 codes, and dynamic one-time passwords on these pages. If a payment page presents an invalid certificate, a browser or application may terminate the connection. If users are encouraged to bypass the warning, the risk becomes more serious: a fraudulent domain can exploit the resulting confusion to steal payment information.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Certificate Transparency records show that, over a short period, certificates for <\/span><span style=\"font-weight: 400;\">*.shaparak.ir<\/span><span style=\"font-weight: 400;\"> were obtained from several issuers, including Actalis, Let\u2019s Encrypt, TrustAsia, and SSL.com.<\/span><span style=\"font-weight: 400;\"> Maintaining certificates from multiple providers is not necessarily a security failure; it may form part of a contingency plan. Nevertheless, the rapid movement between issuers suggests that stable access to a publicly trusted certificate chain has become a serious concern.<\/span><\/p>\n<h4><b>Direct Risks to Iranian Users<\/b><\/h4>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b>Increased phishing:<\/b><span style=\"font-weight: 400;\"> Repeated changes to banking and payment domains make official addresses harder to recognize and make fraudulent \u201cnew bank address\u201d messages more convincing.<\/span><span style=\"font-weight: 400;\"> A padlock icon alone does not prove that a website belongs to a bank.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b>Normalization of browser warnings:<\/b><span style=\"font-weight: 400;\"> Encouraging users to bypass certificate warnings weakens an important safeguard before sensitive information is submitted and increases the likelihood that users will also ignore warnings on fraudulent websites.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b>Disruption of banking and payments:<\/b><span style=\"font-weight: 400;\"> An invalid certificate can make online banking, mobile banking, and payment pages inaccessible or leave the status of a transaction unclear.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b>Failure of backend communications:<\/b><span style=\"font-weight: 400;\"> Connections among banks, merchants, payment companies, identity services, and cloud systems may also fail, even when the public-facing website appears to remain available.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b>Costs for businesses:<\/b><span style=\"font-weight: 400;\"> A domain change may require businesses to update their e-commerce trust seal, licenses, payment gateway registration, links, and advertising campaigns.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><\/b><b><\/b><b><\/b><b><\/b><b><\/b><b>Dependence on domestic tools:<\/b><span style=\"font-weight: 400;\"> Instability in foreign certificate services may turn the use of a domestic browser, a specific application, or a locally issued root certificate into a condition for accessing essential services.<\/span><\/li>\n<\/ul>\n<h4><b>A Domestic Root Certificate: Service Continuity or Centralized Trust?<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">As foreign certificate providers become less reliable, Iranian authorities have increasingly turned to domestic alternatives to maintain access to essential online services. <\/span><span style=\"font-weight: 400;\">According to a<\/span> <span style=\"font-weight: 400;\"><a href=\"https:\/\/peivast.com\/p\/266303\">report<\/a> by Peivast<\/span><span style=\"font-weight: 400;\">, the Central Bank instructed the banking network to use Iran\u2019s domestic root certificate infrastructure, and at least eleven banks entered the process of obtaining locally issued certificates.<\/span><span style=\"font-weight: 400;\"> Domestic certificates can use standard algorithms and strong encryption. The central problem, however, is that widely used browsers and operating systems do not automatically recognize or trust Iran\u2019s root certificate authority.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">To address this limitation, users may be instructed to install the root certificate on their devices or use a browser in which the root is already trusted. Installing a root certificate is fundamentally different from installing a certificate for a single website. A website certificate applies to a particular domain, whereas a trusted root may validate certificates issued for many domains. If such a root is installed at the operating-system level, applications and browsers that rely on the system trust store may accept certificate chains issued beneath it.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This capability does not, by itself, prove surveillance or abuse. Many countries and organizations operate internal public-key infrastructures. The risk increases when the root\u2019s scope of authority, key-management practices, issuance procedures, domain restrictions, independent audits, public logging, and incident-response mechanisms are not transparent to users and outside researchers.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If a trusted root\u2019s private key is stolen, if a certificate is issued incorrectly, or if the authority is abused, impersonating websites and interfering with users\u2019 communications may become technically possible. The more devices on which the root is installed, the wider the potential impact.<\/span><\/p>\n<h4><b>How Sanctions Contribute to the \u201cNationalization of Trust\u201d<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">The shift toward domestic certificate infrastructure illustrates a broader problem: foreign sanctions and Iran\u2019s domestic internet-control policies, while not necessarily coordinated, can produce outcomes that reinforce one another. When a foreign provider restricts a service because of sanctions, overcompliance, or a commercial decision, an Iranian organization may respond by moving its domain, hosting, security certificates, or software to a domestic alternative to maintain access. As a result, essential online services become increasingly dependent on infrastructure controlled inside Iran.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The TrustAsia experience shows that shifting from Western providers to Chinese companies does not eliminate this dependence. Chinese companies also operate in global markets and may incorporate similar legal and commercial considerations into their decisions. An Iranian organization may therefore conclude that building a domestic chain of trust is the only reliable long-term option.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The benefit of this approach is service continuity when a foreign certificate authority terminates cooperation. The cost is the transfer of trust from the public WebPKI ecosystem to a domestic institution about whose issuance policies, independent audits, and accountability mechanisms less public information is available. If access depends on installing a root certificate or using a designated browser, the issue becomes directly connected to user choice and informed consent.<\/span><\/p>\n<h4><b>An Example Beyond Certificates: Disruption in Google Account Creation<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">The risks of relying on foreign digital services extend beyond security certificates, as recent difficulties accessing Google services in Iran illustrate.\u00a0 <\/span><span style=\"font-weight: 400;\">In September and October 2026, some Iranian users reported that phone numbers with the <\/span><span style=\"font-weight: 400;\">+98<\/span><span style=\"font-weight: 400;\"> country code were rejected during Google Account creation or recovery, or that verification messages never arrived.<\/span> <span style=\"font-weight: 400;\">Google\u2019s official <a href=\"https:\/\/support.google.com\/accounts\/answer\/114129?hl=en\">guidance<\/a><\/span><span style=\"font-weight: 400;\"> states that phone verification is required only in certain circumstances to confirm that a user is a real person and to prevent bulk account creation and abuse.<\/span><span style=\"font-weight: 400;\"> Google has not announced a blanket ban on Gmail account creation for Iranian users. The problem therefore cannot conclusively be described as a \u201cGmail sanction.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The service does not behave identically for all users. In the cases examined for this report, an account could be created without phone verification on a device that already had a history of using a Google Account. On a browser or device without such a history, however, phone verification became mandatory and the Iranian number was rejected. This difference suggests that device history, IP address, cookies, VPN use, and Google\u2019s risk-assessment systems may influence the decision.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The precise cause remains unknown. If a number is immediately rejected with the message \u201cThis phone number cannot be used for verification,\u201d the decision was probably made by Google\u2019s anti-abuse system or an identity-verification contractor before any message was sent. If the number is accepted but the message never arrives, the problem may lie with an SMS intermediary, an international telecommunications route, or an Iranian mobile operator. Without an official response from Google and access to message-delivery records, the point of failure cannot be determined.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The consequences extend beyond the inability to create a Gmail address. A Google Account is used to activate many Android functions, download applications from Google Play, access Google Drive and Photos, back up devices, and sign in to third-party services. Verification problems may also make it difficult to recover existing accounts. A restriction whose cause and responsible party remain unclear could therefore exclude Iranian users from parts of Google\u2019s ecosystem and make domestic services the only practical alternative.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When a user in Iran attempts to access a banking website and their browser displays the warning \u201cYour connection is not private,\u201d the problem is not simply that the webpage has failed to load. The warning means the browser cannot reliably verify that the website actually belongs to the bank it claims to represent. Recent<a class=\"more-link\" href=\"https:\/\/filter.watch\/english\/2026\/10\/08\/investigative-report-september-2026-revocation-of-security-certificates\/\">Continue reading <span class=\"screen-reader-text\">\"When the Chain of Trust Breaks Certificate Revocations, Sanctions, and the Risks of \u201cNationalizing Trust\u201d on Iran\u2019s Internet\"<\/span><\/a><\/p>\n","protected":false},"author":42,"featured_media":6074,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[3],"tags":[399,398,397,243,396,395],"class_list":["post-6073","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-investigations","tag-browser-security-warnings","tag-domestic-root-certificate-authority","tag-google-account-access-issues","tag-phishing","tag-security-certificate-revocation","tag-ssl-tls","entry"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"When a user in Iran attempts to access a banking website and their browser displays the warning \u201cYour connection is not private,\u201d the problem is not simply that the webpage has failed to load. 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