eSIM lawful interception presents unique technical challenges compared to traditional SIM-based interception. The transition from physical SIM cards to embedded SIM (eSIM) technology is reshaping the mobile telecommunications landscape. Driven by the GSMA’s Remote SIM Provisioning (RSP) architecture, eSIM enables subscribers to switch operators, activate profiles, and manage multiple subscriptions without physically replacing a SIM card. For consumers, this means greater flexibility and convenience. For operators — and particularly for those responsible for עמידה בדרישות החוק בנושא יירוט תקשורת — eSIM introduces new complexities that must be understood and addressed.
מאמר זה בוחן כיצד ארכיטקטורת ה-RSP משפיעה על יירוט חוקי, מזהה את האתגרים הספציפיים שה-eSIM מציב בפני זיהוי היעד וניהול היירוט, ומספק הנחיות מעשיות למפעילים המבקשים לשמור על תאימות בסביבה התומכת ב-eSIM.
כיצד פועלת יירוט חוקי של eSIM
The GSMA RSP architecture defines the ecosystem for managing eSIM profiles. The key components include the Subscription Manager — Data Preparation (SM-DP+), which prepares and securely delivers operator profiles to eSIM devices; the Subscription Manager — Discovery Server (SM-DS), which facilitates the discovery of available profiles; the eUICC (embedded Universal Integrated Circuit Card), which is the secure element within the device that hosts one or more operator profiles; and the Local Profile Assistant (LPA), which is the software on the device that manages profile download, installation, and switching. For IoT devices, GSMA SGP.31/SGP.32 replaces the user-driven LPA with a remote eSIM IoT Manager (eIM).
Under the RSP model, an operator’s profile — containing the IMSI, authentication credentials, network access configuration, and other parameters — is downloaded and installed onto the eUICC remotely. Multiple profiles can coexist on a single eUICC. Older eUICCs allow only one enabled profile at a time; since GSMA SGP.22 v3, devices supporting Multiple Enabled Profiles (MEP) can run two at once. Subscribers can switch between profiles — and effectively between operators — through a software operation on the device, without any physical intervention.
This dynamic, software-driven provisioning model is fundamentally different from the traditional physical SIM model, where the IMSI is personalised onto a card that has to be physically delivered. The implications for lawful interception are significant.
אתגרים בזיהוי מטרות
בצווי יירוט חוקיים, היעד מזוהה בדרך כלל באמצעות מזהה אחד או יותר: MSISDN (מספר טלפון), IMSI (זהות מנוי), IMEI (זהות מכשיר) או כתובת IP. מודל ה-eSIM מסבך את כל אחת משיטות הזיהוי הללו בדרכים שונות.
MSISDN-based targeting is affected by the ease with which subscribers can change operators — and by extension change their MSISDN — through a simple profile switch. A target who suspects surveillance may switch to a different profile and MSISDN without a physical SIM changing hands. Similar switches have always been possible with dual-SIM phones. Each new profile still means a new subscription (in Germany, prepaid profiles require an identity check before activation, § 172(2) TKG), and its download is logged against the device’s EID. The operator that was performing the interception may lose visibility of the target entirely if the target activates a profile from a different operator.
מיקוד המבוסס על IMSI מתמודד עם אתגרים דומים. לכל פרופיל מפעיל ב-eUICC יש IMSI משלו. כאשר היעד מחליף פרופילים, IMSI אחר הופך לפעיל, וה-IMSI המקורי כבר אינו נראה ברשת. המפעיל שמבצע יירוט על סמך ה-IMSI המקורי יראה את היעד נעלם, לכאורה, מהרשת.
IMEI-based targeting is more stable in the eSIM context, as the IMEI is associated with the device rather than the SIM profile. Note that dual-SIM and multi-profile devices carry a separate IMEI for each simultaneously active subscription, and that the network usually learns the IMEI only at registration. However, IMEI-based interception has its own limitations — it may capture communications from other users who share the device, and it does not help if the target uses multiple devices.
מיקוד מבוסס כתובת IP הוא דינמי מטבעו ואינו מושפע באופן ספציפי מ-eSIM, אך המורכבות הכוללת של המיקוד בסביבת eSIM עשויה להוביל את רשויות אכיפת החוק להסתמך במידה רבה יותר על זיהוי מבוסס IP, עם האתגרים הכרוכים בכך, כגון הקצאה דינמית ותרגום כתובות רשת.
מעבר בין פרופילים ורציפות היירוט
One of the most significant challenges that eSIM creates for lawful interception is the potential for interception discontinuity during profile switches. When a target switches from one operator profile to another on the same device, the interception that was active on the first operator’s network must be coordinated with a new interception on the second operator’s network. In practice, law enforcement must identify the new operator, obtain a new order and serve it there, which may take hours or days, during which the target’s communications go unmonitored.
The speed and ease of profile switching in the eSIM model — which can be accomplished in seconds on many devices — contrasts sharply with the time required to establish a new interception on a different operator’s network. This temporal gap is an investigative challenge for law enforcement rather than a compliance gap for the original operator, whose obligation ends at its own subscription and the identifiers named in the order.
Addressing this challenge requires enhanced coordination mechanisms between operators and law enforcement, potentially including automated notifications when a target’s profile is deactivated and standardised procedures for rapidly establishing interceptions on the target’s new operator. Standardised solutions are not yet widely available.
תרחישים הכוללים פרופילים ומכשירים מרובים
טכנולוגיית ה-eSIM מאפשרת תרחישים שקשה להתמודד איתם באמצעות שיטות יירוט מסורתיות. מכשיר בודד עשוי להכיל פרופילים של מספר מפעילים, אשר עשויים להיות ממדינות שונות. למנוי בודד עשויים להיות פרופילים של eSIM במספר מכשירים — סמארטפון, טאבלט, שעון חכם ומחשב נייד. כל שילוב של פרופיל ומכשיר יוצר ערוץ תקשורת פוטנציאלי שעשוי לדרוש יירוט.
For operators, this means that the scope of an interception may extend beyond the traditional single-subscriber, single-device model. Within its own customer base, the operator should be able to tell law enforcement which other subscriptions or eSIM profiles the same customer holds, so that the order can be extended. It can intercept only the identifiers the order names.
מבחינת רשויות אכיפת החוק, המודל הרב-פרופיל פירושו שצו יירוט אחד עשוי שלא להספיק. אם למטרה יש פרופילים ברשתות של מספר מפעילים, ייתכן שיהיה צורך להוציא צווים נפרדים לכל מפעיל. התיאום בין הצווים הרבים הללו — כדי להבטיח כיסוי מלא ללא פערים — מוסיף מורכבות לתהליך החקירה.
השלכות על מערכת LI
To maintain effective lawful interception in an eSIM environment, operators must ensure that their LI systems address several specific requirements. First, operators should understand what the network actually sees. Switching profiles happens locally on the device. The operator’s network sees it the way it sees a phone being switched off: the target’s subscription deregisters, and the existing interception reports this as IRI. The SM-DP+ is not a real-time LI source. Its value is in the records it keeps, such as which EID a profile was downloaded to, which can support disclosure requests. The LI system should not push target data to the SM-DP+, which is often operated by a third party.
Second, the LI system must support the correlation of multiple identifiers associated with the same subscriber. A target may be known by different MSISDNs, IMSIs, and IP addresses depending on which profile is active. The LI system must maintain a mapping between these identifiers and the target’s interception order, ensuring that every identifier named in the order (MSISDN, IMSI/SUPI, IMEI/PEI) is intercepted, and that law enforcement can quickly learn which further identifiers the same customer uses.
Third, the LI system should deliver the standard registration and deregistration events promptly, since a profile switch shows up on the network as the target’s subscription deregistering. This information can be valuable to law enforcement in understanding the target’s behavior and in deciding on follow-up orders.
Fourth, the operator’s ניהול צווי חיפוש system must be capable of handling the additional complexity introduced by eSIM. This includes the ability to modify interception parameters when the order is amended, to report promptly when a target’s subscription goes inactive, so that law enforcement can decide on follow-up orders, and to keep a complete audit trail of every order amendment, identifier change and task activation or deactivation.
התפתחויות בתחום הרגולציה והתקינה
LI standards address the issue indirectly: identifiers are always tied to the subscription or device, not to the SIM form factor. 3GPP’s 5G LI architecture (TS 33.127/33.128) is SIM-agnostic: it intercepts by SUPI, PEI and GPSI, whether the credentials sit on a physical SIM or an eSIM profile.
National LI rules generally do not treat eSIM separately. In Germany, the TKÜV and TR TKÜV are technology-neutral: interception is tied to identifiers such as MSISDN, IMSI/SUPI and IMEI/PEI, so it applies to eSIM subscriptions exactly as to physical SIMs.
סיכום
eSIM technology and the RSP architecture introduce significant new challenges for lawful interception, primarily related to target identification, interception continuity, and multi-profile scenarios. These challenges are not insurmountable, but they require operators to report registration events promptly, keep reliable records linking EID, ICCID and IMSI, and answer subscriber-data requests quickly. eSIM does not change an operator’s LI obligations; it changes how quickly law enforcement needs to learn about a target’s other subscriptions.
צעדים מעשיים למפעילים
Operators should begin by assessing their current eSIM deployment and its impact on their existing LI capabilities. This assessment should identify any gaps in target identification, interception continuity, or multi-profile handling. Based on the assessment, operators should develop a roadmap for enhancing their LI systems to address eSIM-specific challenges, prioritising the highest-risk gaps first. Prompt delivery of registration and deregistration events, and the ability to answer subscriber-data requests from the operator’s own EID, ICCID and IMSI records, are the foundation for supporting law enforcement in an eSIM environment. Operators should also engage with their national regulatory authority to understand any specific guidance or requirements related to eSIM and LI compliance, and should participate in industry forums and standards development activities to help shape the emerging solutions.
עם התגברות קצב אימוץ ה-eSIM, האתגרים הכרוכים ביירוט חוקי של ה-eSIM יהפכו לדחופים יותר. על המפעילים לטפל באופן יזום בדרישות היירוט החוקי של ה-eSIM במסגרת תוכניות הציות שלהם.
מאמרים קשורים
לקריאה נוספת בנושאים קשורים, עיין במאמרים הבאים:
- LI עבור מפעילים וירטואליים (MVNO) המציעים שירותי eSIM בלבד: אתגרים ייחודיים ופתרונות מעשיים
- MVNO לעומת MNO: מי נושא באחריות המשפטית ליירוט חוקי?
- חיתוך רשת ב-5G SA: כיצד הדבר מסבך (ויכול לפשט) את מיקוד ה-LI
משאבים חיצוניים
המשאבים החיצוניים הבאים מספקים מידע רקע נוסף ומסמכים רשמיים:
