Liseiwicz and Fan Lili's house arrest

Liseiwicz and Fan Lili’s house arrest was the culmination of surveillance that tightened after PURPLE was cracked and intensified when BLACK was broken in 1970. It restricted their movements and communications, but also created the conditions for Liseiwicz to tell Fan Lili what he knew; their confinement thus became both a form of control and a source of otherwise inaccessible knowledge.

Escalating Surveillance

The account traces restrictions on Liseiwicz and Fan Lili to the period around the cracking of PURPLE. Whenever they went out, they were followed; their telephone was monitored, and numerous restrictions shaped their daily lives. The narrator describes this earlier period as a kind of partial house arrest: the formal state of confinement had not yet arrived, but ordinary movement and communication were already under surveillance.

That distinction matters. Their confinement did not begin suddenly with a single order in 1970. The later strict house arrest followed an existing pattern of watching and limitation, in which the boundary between permitted and forbidden activity had already narrowed. The surveillance reached into both public movement and private communication.

Strict Confinement After BLACK

Strict house arrest followed the discovery, in the second half of 1970, that BLACK had been broken. The account places this development amid suspicions about how two exceptionally difficult ciphers, PURPLE and BLACK, could have been deciphered in succession. Liseiwicz had created PURPLE alone and participated in creating BLACK; the person who deciphered both was his student, Rong Jinzhen. Because such rapid success seemed extraordinarily unlikely without a leak, suspicion fell especially on Liseiwicz.

The narrative connects the discovery of BLACK’s compromise to the imposition of strict confinement, but does not specify a formal charge or establish that Liseiwicz had leaked information. The difference is significant: surveillance and suspicion are presented as facts, while the alleged explanation for the cipher breaks remains a suspicion. The house arrest marks the point at which scrutiny became direct and severe, not proof that the suspicion was true.

Life Together and the Disclosure of Secrets

Under house arrest, Liseiwicz and Fan Lili spent every day together and had to find things to talk about. Fan Lili later explains that she came to know so much because Liseiwicz told her everything during this period; before their confinement, she knew very little about these matters. The restriction that narrowed their lives therefore also altered what could be shared between them.

The account makes the confinement a turning point in the transmission of knowledge. Information that had been inaccessible to Fan Lili before the restrictions became part of their daily conversations. Their enforced proximity did not undo the surveillance or restore their freedom, but it gave their time together a consequence beyond endurance: it became the occasion for disclosures that shaped Fan Lili’s later understanding.

Death and Retrospective Meaning

Liseiwicz died of illness in 1979, after the period of house arrest had become part of the history Fan Lili could recount. His death closes the shared interval described in the account, while the knowledge he passed on during confinement remains. The sequence is stark: suspicion followed the breaking of BLACK, restrictions tightened into house arrest, and the years spent together became the setting for a belated account of what Fan Lili had not previously known.

The episode also shows how secrecy operated beyond the ciphers themselves. Surveillance governed where the pair could go and whom they could communicate with; confinement then shaped the private conversations through which knowledge survived. In this way, the house arrest was both a consequence of Unit 701’s secretive world and a condition under which part of that world could finally be told.