@techreport{FS26,
	address = {Zürich, Switzerland},
	author = {Feng, Chao and Stiller, Burkhard},
	howpublished = {arXiv:2609.02450},
	month = {sep},
	publisher = {arXiv preprint},
	title = {CACTUS: Mask-Guided Semantic Clean-Label Backdoors in Decentralized Federated Learning},
	url = {https://arxiv.org/abs/2609.02450},
	year = {2026}
}