diff --git a/packages/lib/Synchronizer.ts b/packages/lib/Synchronizer.ts
index 4c4b73f5a..f82d3957d 100644
--- a/packages/lib/Synchronizer.ts
+++ b/packages/lib/Synchronizer.ts
@@ -451,7 +451,7 @@ export default class Synchronizer {
 
 			try {
 				let remoteInfo = await fetchSyncInfo(this.api());
-				logger.info('Sync target remote info:', remoteInfo);
+				logger.info('Sync target remote info:', remoteInfo.filterSyncInfo());
 				eventManager.emit(EventName.SessionEstablished);
 
 				let syncTargetIsNew = false;
@@ -471,8 +471,7 @@ export default class Synchronizer {
 				if (appVersion !== 'unknown') checkIfCanSync(remoteInfo, appVersion);
 
 				let localInfo = await localSyncInfo();
-
-				logger.info('Sync target local info:', localInfo);
+				logger.info('Sync target local info:', localInfo.filterSyncInfo());
 
 				localInfo = await this.setPpkIfNotExist(localInfo, remoteInfo);
 
diff --git a/packages/lib/services/synchronizer/syncInfoUtils.test.ts b/packages/lib/services/synchronizer/syncInfoUtils.test.ts
index 869408b6f..2dfd307d1 100644
--- a/packages/lib/services/synchronizer/syncInfoUtils.test.ts
+++ b/packages/lib/services/synchronizer/syncInfoUtils.test.ts
@@ -200,6 +200,89 @@ describe('syncInfoUtils', () => {
 		logger.enabled = true;
 	});
 
+	// cSpell:disable
+	it('should filter unnecessary sync info', async () => {
+		const initialData = {
+			'version': 3,
+			'e2ee': {
+				'value': true,
+				'updatedTime': 0,
+			},
+			'activeMasterKeyId': {
+				'value': '400227d2222c4d3bb7346514861c643b',
+				'updatedTime': 0,
+			},
+			'masterKeys': [
+				{
+					'id': '400227d8a77c4d3bb7346514861c643b',
+					'created_time': 1515008161362,
+					'updated_time': 1708103706234,
+					'source_application': 'net.cozic.joplin-desktop',
+					'encryption_method': 4,
+					'checksum': '',
+					'content': '{"iv":"M1uezlW1Pu1g3dwrCTqcHg==","v":1,"iter":10000,"ks":256,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"0dqWvU/PUVQ=","ct":"wHXN5pk1s7qKX+2Y9puEGZGkojI1Pvc+TvZUKC6QCfwxtMK6C1Hmgvm53vAaeCMcCXPvGVLo9JwqINFhEgb0ux+KUFcCqgT1pNO2Sf/hJsH8PjaUvl0kwpC511zdnvY7Hk3WIpgXVKUevsQt9TkMK5e8y1JMsuuTD3fW7bEiv/ehe4CBSQ9eH1tWjr1qQ=="}',
+					'hasBeenUsed': true,
+				},
+			],
+			'ppk': {
+				'value': {
+					'id': 'SNQ5ZCs61KDVUW2qqqqHd3',
+					'keySize': 2048,
+					'privateKey': {
+						'encryptionMethod': 4,
+						'ciphertext': '{"iv":"Z2y11b4nCYvpmQ9gvxELug==","v":1,"iter":10000,"ks":256,"ts":64,"mode":"ccm","adata":"","cipher":"aes","salt":"0dqWvU/PUVQ=","ct":"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"}',
+					},
+					'publicKey': '-----BEGIN RSA PUBLIC KEY-----\nMIIBCgKCAQEAiSTY5wBscae/WmU3PfVP5FYQiuTi5V7BjPcge/6pXvgF3zwe43uy\nTWdzO2YgK/a8f3H507clcGlZN4e0e1jZ/rh4lMfaN\nugfNo0RAvuwn8Yniqfb69reygJywbFBIauxbBpVKbc21MLuCbPkVFjKG7qGNYdF4\nc17mQ8nQsbFPZcuvxsZvgvvbza1q0rqVETdDUClyIrY8plAjMgTKCRwq2gafP6eX\nWpkENAyIbOFxSKXjWy0yFidvZfYLz4mIRwIDAQAB\n-----END RSA PUBLIC KEY-----',
+					'createdTime': 1633274368892,
+				},
+				'updatedTime': 1633274368892,
+			},
+			'appMinVersion': '0.0.0',
+		};
+
+		const syncInfo = new SyncInfo();
+		syncInfo.load(JSON.stringify(initialData));
+
+		const filteredSyncInfo = syncInfo.filterSyncInfo();
+
+		expect(filteredSyncInfo).toEqual({
+			'activeMasterKeyId': {
+				'updatedTime': 0,
+				'value': '400227d2222c4d3bb7346514861c643b',
+			},
+			'appMinVersion': '0.0.0',
+			'e2ee': {
+				'updatedTime': 0,
+				'value': true,
+			},
+			'masterKeys': [
+				{
+					'created_time': 1515008161362,
+					'encryption_method': 4,
+					'hasBeenUsed': true,
+					'id': '400227d8a77c4d3bb7346514861c643b',
+					'source_application': 'net.cozic.joplin-desktop',
+					'updated_time': 1708103706234,
+				},
+			],
+			'ppk': {
+				'updatedTime': 1633274368892,
+				'value': {
+					'createdTime': 1633274368892,
+					'id': 'SNQ5ZCs61KDVUW2qqqqHd3',
+					'keySize': 2048,
+					'privateKey': {
+						'ciphertext': '{"iv":"Z2y11b4nCYvpm...TqWOF+6eYn8Q+Y3YIY"}',
+						'encryptionMethod': 4,
+					},
+					'publicKey': '-----BEGIN RSA PUBLIC KEY-----\nMIIBCgKCA...',
+				},
+			},
+			'version': 3,
+		});
+	});
+	// cSpell:enable
+
 	test.each([
 		['1.0.0', '1.0.4', true],
 		['1.0.0', '0.0.5', false],
diff --git a/packages/lib/services/synchronizer/syncInfoUtils.ts b/packages/lib/services/synchronizer/syncInfoUtils.ts
index 2042aaf02..c2d6dcfab 100644
--- a/packages/lib/services/synchronizer/syncInfoUtils.ts
+++ b/packages/lib/services/synchronizer/syncInfoUtils.ts
@@ -240,6 +240,26 @@ export class SyncInfo {
 		};
 	}
 
+	public filterSyncInfo() {
+		const filtered = JSON.parse(JSON.stringify(this.toObject()));
+
+		// Filter content and checksum properties from master keys
+		if (filtered.masterKeys) {
+			filtered.masterKeys = filtered.masterKeys.map((mk: MasterKeyEntity) => {
+				delete mk.content;
+				delete mk.checksum;
+				return mk;
+			});
+		}
+
+		// Truncate the private key and public key
+		if (filtered.ppk.value) {
+			filtered.ppk.value.privateKey.ciphertext = `${filtered.ppk.value.privateKey.ciphertext.substr(0, 20)}...${filtered.ppk.value.privateKey.ciphertext.substr(-20)}`;
+			filtered.ppk.value.publicKey = `${filtered.ppk.value.publicKey.substr(0, 40)}...`;
+		}
+		return filtered;
+	}
+
 	public serialize(): string {
 		return JSON.stringify(this.toObject(), null, '\t');
 	}