diff --git a/Cargo.lock b/Cargo.lock
index 9834a8d..9460c61 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -39,6 +39,17 @@ version = "0.1.1"
 dependencies = [
  "belt-block",
  "hex-literal",
+ "zeroize",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdd35008169921d80bc60d3d0ab416eecb028c4cd653352907921d95084790be"
+dependencies = [
+ "hybrid-array",
+ "zeroize",
 ]
 
 [[package]]
@@ -47,8 +58,10 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8cf2a2c93cd704877c0858356ed03480ff301ee950b43f1cbe4573b088bfa6c"
 dependencies = [
+ "block-buffer",
  "crypto-common",
  "inout",
+ "zeroize",
 ]
 
 [[package]]
@@ -94,6 +107,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9155a582abd142abc056962c29e3ce5ff2ad5469f4246b537ed42c5deba857da"
 dependencies = [
  "typenum",
+ "zeroize",
 ]
 
 [[package]]
diff --git a/belt-kwp/CHANGELOG.md b/belt-kwp/CHANGELOG.md
index d19c95d..a95e453 100644
--- a/belt-kwp/CHANGELOG.md
+++ b/belt-kwp/CHANGELOG.md
@@ -5,10 +5,15 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## 0.2.0 (UNRELEASED)
+### Added
+- Optional `zeroize` support ([#88])
+
 ### Removed
 - `std` and `alloc` crate features ([#87])
+- Implementation of `Copy` for `BeltKwp` ([#88])
 
 [#87]: https://github.com/RustCrypto/key-wraps/pull/87
+[#88]: https://github.com/RustCrypto/key-wraps/pull/88
 
 ## 0.1.1 (2026-05-27)
 ### Changed
diff --git a/belt-kwp/Cargo.toml b/belt-kwp/Cargo.toml
index 0c0b92b..5d8cdfb 100644
--- a/belt-kwp/Cargo.toml
+++ b/belt-kwp/Cargo.toml
@@ -13,9 +13,13 @@ rust-version = "1.85"
 
 [dependencies]
 belt-block = "0.2"
+zeroize = { version = "1.8", optional = true, default-features = false }
 
 [dev-dependencies]
 hex-literal = "1"
 
+[features]
+zeroize = ["dep:zeroize", "belt-block/zeroize"]
+
 [package.metadata.docs.rs]
 all-features = true
diff --git a/belt-kwp/src/lib.rs b/belt-kwp/src/lib.rs
index c13d666..c52dd84 100644
--- a/belt-kwp/src/lib.rs
+++ b/belt-kwp/src/lib.rs
@@ -29,7 +29,7 @@ pub type WrappedKey<N> = Array<u8, Sum<N, IvLen>>;
 pub const IV_LEN: usize = IvLen::USIZE;
 
 /// BelT Key Wrap instance as defined in STB 34.101.34-2020.
-#[derive(Clone, Copy, PartialEq)]
+#[derive(Clone, PartialEq)]
 pub struct BeltKwp {
     key: [u32; 8],
 }
@@ -206,6 +206,19 @@ impl KeySizeUser for BeltKwp {
     }
 }
 
+impl Drop for BeltKwp {
+    fn drop(&mut self) {
+        #[cfg(feature = "zeroize")]
+        {
+            use zeroize::Zeroize;
+            self.key.zeroize();
+        }
+    }
+}
+
+#[cfg(feature = "zeroize")]
+impl zeroize::ZeroizeOnDrop for BeltKwp {}
+
 /// Errors emitted from the wrap and unwrap operations.
 #[derive(Debug)]
 pub enum Error {